https://en.wikivet.net/index.php?title=Snake_Eye&feed=atom&action=history
Snake Eye - Revision history
2024-03-29T15:38:57Z
Revision history for this page on the wiki
MediaWiki 1.35.0
https://en.wikivet.net/index.php?title=Snake_Eye&diff=142709&oldid=prev
Bara at 16:08, 18 August 2012
2012-08-18T16:08:43Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 16:08, 18 August 2012</td>
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<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>{{<del class="diffchange diffchange-inline">review</del>}}</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>{{<ins class="diffchange diffchange-inline">OpenPagesTop</ins>}}</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:round_yellow_rat_snake_pupil.jpg|300px|thumb|right|'''Round pupil of a [[Rat snake]]''' - © RVC]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:round_yellow_rat_snake_pupil.jpg|300px|thumb|right|'''Round pupil of a [[Rat snake]]''' - © RVC]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:slit_palm_pit_viper_pupil.jpg|300px|thumb|right|'''Slit pupil of a [[Pit viper]]''' - © RVC]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:slit_palm_pit_viper_pupil.jpg|300px|thumb|right|'''Slit pupil of a [[Pit viper]]''' - © RVC]]</div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Physiology==</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Physiology==</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Accommodation is similar to mammals with changes in the shape of the lens. Unlike mammals, this is under voluntary control by the action of the striated radial muscles within the ciliary body. Mammalian mydriatics therefore do not work in reptiles. However, d-tubocurarine has been used for mydriasis in reptiles. Reptiles have a rapid direct light reflex but no consensual light reflex.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Accommodation is similar to mammals with changes in the shape of the lens. Unlike mammals, this is under voluntary control by the action of the striated radial muscles within the ciliary body. Mammalian mydriatics therefore do not work in reptiles. However, d-tubocurarine has been used for mydriasis in reptiles. Reptiles have a rapid direct light reflex but no consensual light reflex.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">{{OpenPages}}</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Snake Anatomy]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Snake Anatomy]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Snake_Physiology]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Snake_Physiology]]</div></td></tr>
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Bara
https://en.wikivet.net/index.php?title=Snake_Eye&diff=96936&oldid=prev
Bara at 21:20, 28 October 2010
2010-10-28T21:20:47Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 21:20, 28 October 2010</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l6" >Line 6:</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>'''For more information on examining snake eyes, see''' [[Snake Physical Examination]].</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>'''For more information on examining snake eyes, see''' [[Snake Physical Examination]].</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* '''Spectacle''' - The embryologically-fused eyelids (hence no palpebral fissure) form a transparent covering of the eye called the spectacle (also known as the brille or eyecap). Between the spectacle and the cornea are tear-like secretions. The spectacle is [[Snake Shedding|shed]] during normal [[Ecdysis|ecdysis]] but may be pathologically retained (for example if [[Snake Mites|mites]] are present, with low humidity or if <del class="diffchange diffchange-inline">the eye is </del>[[:Category:Snake Spectacular Diseases|diseased]]). [[Snake Retained Spectacles|Retention of the spectacles]] has been associated with the development of corneal disease and panophthalmitis.</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* '''Spectacle''' - The embryologically-fused eyelids (hence no palpebral fissure) form a transparent covering of the eye called the spectacle (also known as the brille or eyecap). Between the spectacle and the cornea are tear-like secretions. The spectacle is [[Snake Shedding|shed]] during normal [[Ecdysis|ecdysis]] but may be pathologically retained (for example if [[Snake Mites|mites]] are present, with low humidity or if [[:Category:Snake Spectacular Diseases|<ins class="diffchange diffchange-inline">the eye is </ins>diseased]]). [[Snake Retained Spectacles|Retention of the spectacles]] has been associated with the development of corneal disease and panophthalmitis.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* '''Tears''' - All reptiles produce tears. In snakes, tears produce a region of lubrication between the cornea and the spectacle, allowing the free movement of the eye. Paired nasolacrimal ducts drain the sub-spectacular spaces into the mouth near the vomeronasal organ. Tears cannot overflow the eyelids, as in mammals, so if a nasolacrimal duct is damaged there is a build-up of tears under the spectacle, which leads to a [[Snake Bullous Spectaculopathy|bullous spectaculopathy]].</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* '''Tears''' - All reptiles produce tears. In snakes, tears produce a region of lubrication between the cornea and the spectacle, allowing the free movement of the eye. Paired nasolacrimal ducts drain the sub-spectacular spaces into the mouth near the vomeronasal organ. Tears cannot overflow the eyelids, as in mammals, so if a nasolacrimal duct is damaged there is a build-up of tears under the spectacle, which leads to a [[Snake Bullous Spectaculopathy|bullous spectaculopathy]].</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* '''Cornea''' - The pupil is commonly elliptical or round and may give an indication of habitat and lifestyle. Often diurnal species have round pupils and nocturnal species have vertical pupils. [[coral snake|Coral snakes]] and all New World non-venomous snakes, except the [[Boa constrictor|boa constrictor]] have round pupils, while [[Pit viper|pit vipers]] have vertical slit pupils.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* '''Cornea''' - The pupil is commonly elliptical or round and may give an indication of habitat and lifestyle. Often diurnal species have round pupils and nocturnal species have vertical pupils. [[coral snake|Coral snakes]] and all New World non-venomous snakes, except the [[Boa constrictor|boa constrictor]] have round pupils, while [[Pit viper|pit vipers]] have vertical slit pupils.</div></td></tr>
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Bara
https://en.wikivet.net/index.php?title=Snake_Eye&diff=84732&oldid=prev
Suzannah.stacey at 16:10, 14 August 2010
2010-08-14T16:10:13Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 16:10, 14 August 2010</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:round_yellow_rat_snake_pupil.jpg|300px|thumb|right|'''Round pupil of a [[Rat snake]]''' - © RVC]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:round_yellow_rat_snake_pupil.jpg|300px|thumb|right|'''Round pupil of a [[Rat snake]]''' - © RVC]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:slit_palm_pit_viper_pupil.jpg|300px|thumb|right|'''Slit pupil of a [[Pit viper]]''' - © RVC]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:slit_palm_pit_viper_pupil.jpg|300px|thumb|right|'''Slit pupil of a [[Pit viper]]''' - © RVC]]</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Snakes are often presented to the veterinarian for eye problems so knowledge of the normal anatomy of the ophidian eye is essential. The eyesight of snakes is relatively inefficient and the eye is reduced or absent in some fossorial snakes. They rely heavily on [[Snake Special Senses|special senses]].</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Snakes are often presented to the veterinarian for eye problems so knowledge of the normal anatomy of the ophidian eye is essential. The eyesight of snakes is relatively inefficient and the eye is reduced or absent in some fossorial snakes. They rely <ins class="diffchange diffchange-inline">more </ins>heavily on <ins class="diffchange diffchange-inline">the other </ins>[[Snake Special Senses|special senses]].</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>'''For more information on examining snake eyes, see''' [[Snake Physical Examination]].</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>'''For more information on examining snake eyes, see''' [[Snake Physical Examination]].</div></td></tr>
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Suzannah.stacey
https://en.wikivet.net/index.php?title=Snake_Eye&diff=61375&oldid=prev
Cporteous at 16:07, 11 May 2010
2010-05-11T16:07:42Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 16:07, 11 May 2010</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{review}}</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{review}}</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[Image:round_yellow_rat_snake_pupil.jpg|300px|thumb|right|'''Round pupil of a [[Rat snake]]''' - <del class="diffchange diffchange-inline">©RVC and its licensors, Peer Zwart and Fredric Frye. All rights reserved.</del>]]</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[Image:round_yellow_rat_snake_pupil.jpg|300px|thumb|right|'''Round pupil of a [[Rat snake]]''' - <ins class="diffchange diffchange-inline">© RVC</ins>]]</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[Image:slit_palm_pit_viper_pupil.jpg|300px|thumb|right|'''Slit pupil of a [[Pit viper]]''' - <del class="diffchange diffchange-inline">©RVC and its licensors, Peer Zwart and Fredric Frye. All rights reserved.</del>]] </div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[Image:slit_palm_pit_viper_pupil.jpg|300px|thumb|right|'''Slit pupil of a [[Pit viper]]''' - <ins class="diffchange diffchange-inline">© RVC</ins>]]</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Snakes are often presented to the veterinarian for eye problems so knowledge of the normal anatomy of the ophidian eye is essential. <del class="diffchange diffchange-inline"> </del>The eyesight of snakes is relatively inefficient and the eye is reduced or absent in some fossorial snakes. <del class="diffchange diffchange-inline"> </del>They rely heavily on [[Snake Special Senses|special senses<del class="diffchange diffchange-inline">]].</del></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Snakes are often presented to the veterinarian for eye problems so knowledge of the normal anatomy of the ophidian eye is essential. The eyesight of snakes is relatively inefficient and the eye is reduced or absent in some fossorial snakes. They rely heavily on [[Snake Special Senses|special senses]].</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">*Learn more about examining snake eyes in [[Snake Physical Examination|this section</del>]].</div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*'''Spectacle''' - The embryologically-fused eyelids (hence no palpebral fissure) form a transparent covering of the eye called the spectacle (also known as the brille or eyecap). Between the spectacle and the cornea are tear-like secretions. The spectacle is [[Snake Shedding|shed]] during normal [[Ecdysis|ecdysis]] but may be pathologically retained (for example if [[Snake Mites|mites]] are present, with low humidity or if the eye is [[:Category:Snake Spectacular Diseases|diseased]]). [[Snake Retained Spectacles|Retention of the spectacles]] has been associated with the development of corneal disease and panophthalmitis.</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">'''For more information on examining snake eyes, see''' [[Snake Physical Examination]].</ins></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*'''Tears''' - All reptiles produce tears. In snakes, tears produce a region of lubrication between the cornea and the spectacle, allowing the free movement of the eye. Paired nasolacrimal ducts drain the sub-spectacular spaces into the mouth near the vomeronasal organ. Tears cannot overflow the eyelids, as in mammals, so if a nasolacrimal duct is damaged there is a build-up of tears under the spectacle, which leads to a [[Snake Bullous Spectaculopathy|bullous spectaculopathy]].</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*'''Cornea''' - The pupil is commonly elliptical or round and may give an indication of habitat and lifestyle. Often diurnal species have round pupils and nocturnal species have vertical pupils. [[coral snake|Coral snakes]] and all New World non-venomous snakes, except the [[Boa constrictor|boa constrictor]] have round pupils, while [[Pit viper|pit vipers]] have vertical slit pupils.</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* '''Spectacle''' - The embryologically-fused eyelids (hence no palpebral fissure) form a transparent covering of the eye called the spectacle (also known as the brille or eyecap). Between the spectacle and the cornea are tear-like secretions. The spectacle is [[Snake Shedding|shed]] during normal [[Ecdysis|ecdysis]] but may be pathologically retained (for example if [[Snake Mites|mites]] are present, with low humidity or if the eye is [[:Category:Snake Spectacular Diseases|diseased]]). [[Snake Retained Spectacles|Retention of the spectacles]] has been associated with the development of corneal disease and panophthalmitis.</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*'''Sclera''' - The eye has no ossicles (unlike other reptiles) and the sclera is composed entirely of tendinous connective tissue.</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* '''Tears''' - All reptiles produce tears. In snakes, tears produce a region of lubrication between the cornea and the spectacle, allowing the free movement of the eye. Paired nasolacrimal ducts drain the sub-spectacular spaces into the mouth near the vomeronasal organ. Tears cannot overflow the eyelids, as in mammals, so if a nasolacrimal duct is damaged there is a build-up of tears under the spectacle, which leads to a [[Snake Bullous Spectaculopathy|bullous spectaculopathy]].</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*'''Posterior segment''' - The retina is usually grey mottled with white or red spots and appears with semi-opaque nerve fibres radiating uniformly outwards from the optic disc that is obscured in families having a conus. It is avascular and the membrana vasculosa retinae supply nutrients.</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* '''Cornea''' - The pupil is commonly elliptical or round and may give an indication of habitat and lifestyle. Often diurnal species have round pupils and nocturnal species have vertical pupils. [[coral snake|Coral snakes]] and all New World non-venomous snakes, except the [[Boa constrictor|boa constrictor]] have round pupils, while [[Pit viper|pit vipers]] have vertical slit pupils.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* '''Sclera''' - The eye has no ossicles (unlike other reptiles) and the sclera is composed entirely of tendinous connective tissue.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* '''Posterior segment''' - The retina is usually grey mottled with white or red spots and appears with semi-opaque nerve fibres radiating uniformly outwards from the optic disc that is obscured in families having a conus. It is avascular and the membrana vasculosa retinae supply nutrients.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Physiology==</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Physiology==</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Accommodation is similar to mammals with changes in the shape of the lens. Unlike mammals, this is under voluntary control by the action of the striated radial muscles within the ciliary body. Mammalian mydriatics therefore do not work in reptiles. However, d-tubocurarine has been used for mydriasis in reptiles. Reptiles have a rapid direct light reflex but no consensual light reflex.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Accommodation is similar to mammals with changes in the shape of the lens. Unlike mammals, this is under voluntary control by the action of the striated radial muscles within the ciliary body. Mammalian mydriatics therefore do not work in reptiles. However, d-tubocurarine has been used for mydriasis in reptiles. Reptiles have a rapid direct light reflex but no consensual light reflex.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Snake Anatomy]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Snake Anatomy]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Snake_Physiology]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Snake_Physiology]]</div></td></tr>
</table>
Cporteous
https://en.wikivet.net/index.php?title=Snake_Eye&diff=60101&oldid=prev
Cporteous at 15:09, 27 April 2010
2010-04-27T15:09:06Z
<p></p>
<table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 15:09, 27 April 2010</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l7" >Line 7:</td>
<td colspan="2" class="diff-lineno">Line 7:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*'''Spectacle''' - The embryologically-fused eyelids (hence no palpebral fissure) form a transparent covering of the eye called the spectacle (also known as the brille or eyecap). Between the spectacle and the cornea are tear-like secretions. The spectacle is [[Snake Shedding|shed]] during normal [[Ecdysis|ecdysis]] but may be pathologically retained (for example if [[Snake Mites|mites]] are present, with low humidity or if the eye is [[:Category:Snake Spectacular Diseases|diseased]]). [[Snake Retained Spectacles|Retention of the spectacles]] has been associated with the development of corneal disease and panophthalmitis.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*'''Spectacle''' - The embryologically-fused eyelids (hence no palpebral fissure) form a transparent covering of the eye called the spectacle (also known as the brille or eyecap). Between the spectacle and the cornea are tear-like secretions. The spectacle is [[Snake Shedding|shed]] during normal [[Ecdysis|ecdysis]] but may be pathologically retained (for example if [[Snake Mites|mites]] are present, with low humidity or if the eye is [[:Category:Snake Spectacular Diseases|diseased]]). [[Snake Retained Spectacles|Retention of the spectacles]] has been associated with the development of corneal disease and panophthalmitis.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*'''Tears''' - All reptiles produce tears. In snakes, tears produce a region of lubrication between the cornea and the spectacle, allowing the free movement of the eye. Paired nasolacrimal ducts drain the sub-spectacular spaces into the mouth near the vomeronasal organ. Tears cannot overflow the eyelids, as in mammals, so if a nasolacrimal duct is damaged there is a build-up of tears under the spectacle, which leads to a [[Snake Bullous Spectaculopathy|bullous spectaculopathy]].</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*'''Tears''' - All reptiles produce tears. In snakes, tears produce a region of lubrication between the cornea and the spectacle, allowing the free movement of the eye. Paired nasolacrimal ducts drain the sub-spectacular spaces into the mouth near the vomeronasal organ. Tears cannot overflow the eyelids, as in mammals, so if a nasolacrimal duct is damaged there is a build-up of tears under the spectacle, which leads to a [[Snake Bullous Spectaculopathy|bullous spectaculopathy]].</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*'''Cornea''' - The pupil is commonly elliptical or round and may give an indication of habitat and lifestyle. Often diurnal species have round pupils and nocturnal species have vertical pupils. [[coral snake|Coral snakes]] and all New World non-venomous snakes, except the [[Boa constrictor|boa constrictor]] have round pupils, while [[Pit <del class="diffchange diffchange-inline">Viper</del>|pit vipers]] have vertical slit pupils.</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*'''Cornea''' - The pupil is commonly elliptical or round and may give an indication of habitat and lifestyle. Often diurnal species have round pupils and nocturnal species have vertical pupils. [[coral snake|Coral snakes]] and all New World non-venomous snakes, except the [[Boa constrictor|boa constrictor]] have round pupils, while [[Pit <ins class="diffchange diffchange-inline">viper</ins>|pit vipers]] have vertical slit pupils.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*'''Sclera''' - The eye has no ossicles (unlike other reptiles) and the sclera is composed entirely of tendinous connective tissue.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*'''Sclera''' - The eye has no ossicles (unlike other reptiles) and the sclera is composed entirely of tendinous connective tissue.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*'''Posterior segment''' - The retina is usually grey mottled with white or red spots and appears with semi-opaque nerve fibres radiating uniformly outwards from the optic disc that is obscured in families having a conus. It is avascular and the membrana vasculosa retinae supply nutrients.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*'''Posterior segment''' - The retina is usually grey mottled with white or red spots and appears with semi-opaque nerve fibres radiating uniformly outwards from the optic disc that is obscured in families having a conus. It is avascular and the membrana vasculosa retinae supply nutrients.</div></td></tr>
</table>
Cporteous
https://en.wikivet.net/index.php?title=Snake_Eye&diff=60099&oldid=prev
Cporteous at 14:44, 27 April 2010
2010-04-27T14:44:04Z
<p></p>
<table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 14:44, 27 April 2010</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>
<td colspan="2" class="diff-lineno">Line 1:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{review}}</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{review}}</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">Snakes are often presented to the veterinarian for eye problems so knowledge of the normal anatomy of the ophidian eye is essential. Learn more about examining snake eyes in [[Snake Physical Examination|this section]] The eyesight of snakes is relatively inefficient and the eye is reduced or absent in some fossorial snakes. They rely heavily on [[Snake Special Senses|special senses]].</del></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[Image:round_yellow_rat_snake_pupil.jpg|300px|thumb|right|'''Round pupil <ins class="diffchange diffchange-inline">of a [[Rat snake]]</ins>''' - ©RVC and its licensors, Peer Zwart and Fredric Frye. All rights reserved.]]</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[Image:round_yellow_rat_snake_pupil.jpg|300px|thumb|right|'''Round pupil''' - ©RVC and its licensors, Peer Zwart and Fredric Frye. All rights reserved.]]</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[Image:slit_palm_pit_viper_pupil.jpg|300px|thumb|right|'''Slit pupil <ins class="diffchange diffchange-inline">of a [[Pit viper]]</ins>''' - ©RVC and its licensors, Peer Zwart and Fredric Frye. All rights reserved.]] </div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[Image:slit_palm_pit_viper_pupil.jpg|300px|thumb|right|'''Slit pupil''' - ©RVC and its licensors, Peer Zwart and Fredric Frye. All rights reserved.]] </div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">Snakes are often presented to the veterinarian for eye problems so knowledge of the normal anatomy of the ophidian eye is essential. The eyesight of snakes is relatively inefficient and the eye is reduced or absent in some fossorial snakes. They rely heavily on [[Snake Special Senses|special senses]].</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">*Learn more about examining snake eyes in [[Snake Physical Examination|this section]].</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*'''Spectacle''' - The embryologically-fused eyelids (hence no palpebral fissure) form a transparent covering of the eye called the spectacle (also known as the brille or eyecap). Between the spectacle and the cornea are tear-like secretions. The spectacle is [[Snake Shedding|shed]] during normal [[Ecdysis|ecdysis]] but may be pathologically retained (for example if [[Snake Mites|mites]] are present, with low humidity or if the eye is [[:Category:Snake Diseases|diseased]]). [[Snake Retained Spectacles|Retention of the spectacles]] has been associated with the development of corneal disease and panophthalmitis.</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*'''Spectacle''' - The embryologically-fused eyelids (hence no palpebral fissure) form a transparent covering of the eye called the spectacle (also known as the brille or eyecap). Between the spectacle and the cornea are tear-like secretions. The spectacle is [[Snake Shedding|shed]] during normal [[Ecdysis|ecdysis]] but may be pathologically retained (for example if [[Snake Mites|mites]] are present, with low humidity or if the eye is [[:Category:Snake <ins class="diffchange diffchange-inline">Spectacular </ins>Diseases|diseased]]). [[Snake Retained Spectacles|Retention of the spectacles]] has been associated with the development of corneal disease and panophthalmitis.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*'''Tears''' - All reptiles produce tears. In snakes, tears produce a region of lubrication between the cornea and the spectacle, allowing the free movement of the eye. Paired nasolacrimal ducts drain the sub-spectacular spaces into the mouth near the vomeronasal organ. Tears cannot overflow the eyelids, as in mammals, so if a nasolacrimal duct is damaged there is a build-up of tears under the spectacle, which leads to a [[Snake Bullous Spectaculopathy|bullous spectaculopathy]].</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*'''Tears''' - All reptiles produce tears. In snakes, tears produce a region of lubrication between the cornea and the spectacle, allowing the free movement of the eye. Paired nasolacrimal ducts drain the sub-spectacular spaces into the mouth near the vomeronasal organ. Tears cannot overflow the eyelids, as in mammals, so if a nasolacrimal duct is damaged there is a build-up of tears under the spectacle, which leads to a [[Snake Bullous Spectaculopathy|bullous spectaculopathy]].</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*'''Cornea''' - The pupil is commonly elliptical or round and may give an indication of habitat and lifestyle. Often diurnal species have round pupils and nocturnal species have vertical pupils. Coral snakes and all New World non-venomous snakes, except the [[Boa constrictor|boa constrictor]] have round pupils, while pit vipers have vertical slit pupils.</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*'''Cornea''' - The pupil is commonly elliptical or round and may give an indication of habitat and lifestyle. Often diurnal species have round pupils and nocturnal species have vertical pupils. <ins class="diffchange diffchange-inline">[[coral snake|</ins>Coral snakes<ins class="diffchange diffchange-inline">]] </ins>and all New World non-venomous snakes, except the [[Boa constrictor|boa constrictor]] have round pupils, while <ins class="diffchange diffchange-inline">[[Pit Viper|</ins>pit vipers<ins class="diffchange diffchange-inline">]] </ins>have vertical slit pupils.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*'''Sclera''' - The eye has no ossicles (unlike other reptiles) and the sclera is composed entirely of tendinous connective tissue.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*'''Sclera''' - The eye has no ossicles (unlike other reptiles) and the sclera is composed entirely of tendinous connective tissue.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*'''Posterior segment''' - The retina is usually grey mottled with white or red spots and appears with semi-opaque nerve fibres radiating uniformly outwards from the optic disc that is obscured in families having a conus. It is avascular and the membrana vasculosa retinae supply nutrients.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*'''Posterior segment''' - The retina is usually grey mottled with white or red spots and appears with semi-opaque nerve fibres radiating uniformly outwards from the optic disc that is obscured in families having a conus. It is avascular and the membrana vasculosa retinae supply nutrients.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Physiology==</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Physiology==</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Accommodation is similar to mammals with changes in the shape of the lens. Unlike mammals, this is under voluntary control by the action of the striated radial muscles within the ciliary body. Mammalian mydriatics therefore do not work in reptiles. However, d-tubocurarine has been used for mydriasis in reptiles<del class="diffchange diffchange-inline">. The injection of 0.05 to 0.1ml via a 27-30g needle into the anterior chamber results in mydriasis for 30 minutes to several hours</del>. Reptiles have a rapid direct light reflex but no consensual light reflex.</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Accommodation is similar to mammals with changes in the shape of the lens. Unlike mammals, this is under voluntary control by the action of the striated radial muscles within the ciliary body. Mammalian mydriatics therefore do not work in reptiles. However, d-tubocurarine has been used for mydriasis in reptiles. Reptiles have a rapid direct light reflex but no consensual light reflex.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Snake Anatomy]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Snake Anatomy]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Snake_Physiology]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Snake_Physiology]]</div></td></tr>
</table>
Cporteous
https://en.wikivet.net/index.php?title=Snake_Eye&diff=59711&oldid=prev
Cporteous at 10:34, 25 April 2010
2010-04-25T10:34:08Z
<p></p>
<table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 10:34, 25 April 2010</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l12" >Line 12:</td>
<td colspan="2" class="diff-lineno">Line 12:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Accommodation is similar to mammals with changes in the shape of the lens. Unlike mammals, this is under voluntary control by the action of the striated radial muscles within the ciliary body. Mammalian mydriatics therefore do not work in reptiles. However, d-tubocurarine has been used for mydriasis in reptiles. The injection of 0.05 to 0.1ml via a 27-30g needle into the anterior chamber results in mydriasis for 30 minutes to several hours. Reptiles have a rapid direct light reflex but no consensual light reflex.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Accommodation is similar to mammals with changes in the shape of the lens. Unlike mammals, this is under voluntary control by the action of the striated radial muscles within the ciliary body. Mammalian mydriatics therefore do not work in reptiles. However, d-tubocurarine has been used for mydriasis in reptiles. The injection of 0.05 to 0.1ml via a 27-30g needle into the anterior chamber results in mydriasis for 30 minutes to several hours. Reptiles have a rapid direct light reflex but no consensual light reflex.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Snake Anatomy]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Snake Anatomy]]</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[Category:Snake_Physiology]]</ins></div></td></tr>
</table>
Cporteous
https://en.wikivet.net/index.php?title=Snake_Eye&diff=59710&oldid=prev
Cporteous at 10:33, 25 April 2010
2010-04-25T10:33:05Z
<p></p>
<table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 10:33, 25 April 2010</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>
<td colspan="2" class="diff-lineno">Line 1:</td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>{{<del class="diffchange diffchange-inline">unfinished</del>}}</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>{{<ins class="diffchange diffchange-inline">review</ins>}}</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Snakes are often presented to the veterinarian for eye problems so knowledge of the normal anatomy of the ophidian eye is essential. Learn more about examining snake eyes in [[Snake Physical Examination|this section]] The eyesight of snakes is relatively inefficient and the eye is reduced or absent in some fossorial snakes. They rely heavily on [[Snake Special Senses|special senses]].</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Snakes are often presented to the veterinarian for eye problems so knowledge of the normal anatomy of the ophidian eye is essential. Learn more about examining snake eyes in [[Snake Physical Examination|this section]] The eyesight of snakes is relatively inefficient and the eye is reduced or absent in some fossorial snakes. They rely heavily on [[Snake Special Senses|special senses]].</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[Image:round_yellow_rat_snake_pupil.jpg|300px|thumb|right|Round pupil - ©RVC and its licensors, Peer Zwart and Fredric Frye. All rights reserved.]]</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[Image:round_yellow_rat_snake_pupil.jpg|300px|thumb|right|<ins class="diffchange diffchange-inline">'''</ins>Round pupil<ins class="diffchange diffchange-inline">''' </ins>- ©RVC and its licensors, Peer Zwart and Fredric Frye. All rights reserved.]]</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[Image:slit_palm_pit_viper_pupil.jpg|300px|thumb|right|Slit pupil - ©RVC and its licensors, Peer Zwart and Fredric Frye. All rights reserved.]] </div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[Image:slit_palm_pit_viper_pupil.jpg|300px|thumb|right|<ins class="diffchange diffchange-inline">'''</ins>Slit pupil<ins class="diffchange diffchange-inline">''' </ins>- ©RVC and its licensors, Peer Zwart and Fredric Frye. All rights reserved.]] </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*'''Spectacle''' - The embryologically-fused eyelids (hence no palpebral fissure) form a transparent covering of the eye called the spectacle (also known as the brille or eyecap). Between the spectacle and the cornea are tear-like secretions. The spectacle is [[Snake Shedding|shed]] during normal [[Ecdysis|ecdysis]] but may be pathologically retained (for example if [[Snake Mites|mites]] are present, with low humidity or if the eye is [[:Category:Snake Diseases|diseased]]). [[Snake Retained Spectacles|Retention of the spectacles]] has been associated with the development of corneal disease and panophthalmitis.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*'''Spectacle''' - The embryologically-fused eyelids (hence no palpebral fissure) form a transparent covering of the eye called the spectacle (also known as the brille or eyecap). Between the spectacle and the cornea are tear-like secretions. The spectacle is [[Snake Shedding|shed]] during normal [[Ecdysis|ecdysis]] but may be pathologically retained (for example if [[Snake Mites|mites]] are present, with low humidity or if the eye is [[:Category:Snake Diseases|diseased]]). [[Snake Retained Spectacles|Retention of the spectacles]] has been associated with the development of corneal disease and panophthalmitis.</div></td></tr>
</table>
Cporteous
https://en.wikivet.net/index.php?title=Snake_Eye&diff=59705&oldid=prev
Cporteous at 16:49, 24 April 2010
2010-04-24T16:49:26Z
<p></p>
<table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 16:49, 24 April 2010</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>
<td colspan="2" class="diff-lineno">Line 1:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{unfinished}}</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{unfinished}}</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Snakes are often presented to the veterinarian for eye problems so knowledge of the normal anatomy of the ophidian eye is essential. The eyesight of snakes is relatively inefficient and the eye is reduced or absent in some fossorial snakes.</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Snakes are often presented to the veterinarian for eye problems so knowledge of the normal anatomy of the ophidian eye is essential. <ins class="diffchange diffchange-inline"> Learn more about examining snake eyes in [[Snake Physical Examination|this section]] </ins> The eyesight of snakes is relatively inefficient and the eye is reduced or absent in some fossorial snakes<ins class="diffchange diffchange-inline">. They rely heavily on [[Snake Special Senses|special senses]]</ins>.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:round_yellow_rat_snake_pupil.jpg|300px|thumb|right|Round pupil - ©RVC and its licensors, Peer Zwart and Fredric Frye. All rights reserved.]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:round_yellow_rat_snake_pupil.jpg|300px|thumb|right|Round pupil - ©RVC and its licensors, Peer Zwart and Fredric Frye. All rights reserved.]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:slit_palm_pit_viper_pupil.jpg|300px|thumb|right|Slit pupil - ©RVC and its licensors, Peer Zwart and Fredric Frye. All rights reserved.]] </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:slit_palm_pit_viper_pupil.jpg|300px|thumb|right|Slit pupil - ©RVC and its licensors, Peer Zwart and Fredric Frye. All rights reserved.]] </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*'''Spectacle''' - The embryologically-fused eyelids (hence no palpebral fissure) form a transparent covering of the eye called the spectacle (also known as the brille or eyecap). Between the spectacle and the cornea are tear-like secretions. The spectacle is shed during normal ecdysis but may be pathologically retained (for example if mites are present, with low humidity or if the eye is diseased). Retention of the spectacles has been associated with the development of corneal disease and panophthalmitis.</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*'''Spectacle''' - The embryologically-fused eyelids (hence no palpebral fissure) form a transparent covering of the eye called the spectacle (also known as the brille or eyecap). Between the spectacle and the cornea are tear-like secretions. The spectacle is <ins class="diffchange diffchange-inline">[[Snake Shedding|</ins>shed<ins class="diffchange diffchange-inline">]] </ins>during normal <ins class="diffchange diffchange-inline">[[Ecdysis|</ins>ecdysis<ins class="diffchange diffchange-inline">]] </ins>but may be pathologically retained (for example if <ins class="diffchange diffchange-inline">[[Snake Mites|</ins>mites<ins class="diffchange diffchange-inline">]] </ins>are present, with low humidity or if the eye is <ins class="diffchange diffchange-inline">[[:Category:Snake Diseases|</ins>diseased<ins class="diffchange diffchange-inline">]]</ins>). <ins class="diffchange diffchange-inline">[[Snake Retained Spectacles|</ins>Retention of the spectacles<ins class="diffchange diffchange-inline">]] </ins>has been associated with the development of corneal disease and panophthalmitis.</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*'''Tears''' - All reptiles produce tears. In snakes, tears produce a region of lubrication between the cornea and the spectacle, allowing the free movement of the eye. Paired nasolacrimal ducts drain the sub-spectacular spaces into the mouth near the vomeronasal organ. Tears cannot overflow the eyelids, as in mammals, so if a nasolacrimal duct is damaged there is a build-up of tears under the spectacle, which leads to a bullous spectaculopathy.</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*'''Tears''' - All reptiles produce tears. In snakes, tears produce a region of lubrication between the cornea and the spectacle, allowing the free movement of the eye. Paired nasolacrimal ducts drain the sub-spectacular spaces into the mouth near the vomeronasal organ. Tears cannot overflow the eyelids, as in mammals, so if a nasolacrimal duct is damaged there is a build-up of tears under the spectacle, which leads to a <ins class="diffchange diffchange-inline">[[Snake Bullous Spectaculopathy|</ins>bullous spectaculopathy<ins class="diffchange diffchange-inline">]]</ins>.</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*'''Cornea''' - The pupil is commonly elliptical or round and may give an indication of habitat and lifestyle. Often diurnal species have round pupils and nocturnal species have vertical pupils. Coral snakes and all New World non-venomous snakes, except the boa constrictor have round pupils, while pit vipers have vertical slit pupils.</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*'''Cornea''' - The pupil is commonly elliptical or round and may give an indication of habitat and lifestyle. Often diurnal species have round pupils and nocturnal species have vertical pupils. Coral snakes and all New World non-venomous snakes, except the <ins class="diffchange diffchange-inline">[[Boa constrictor|</ins>boa constrictor<ins class="diffchange diffchange-inline">]] </ins>have round pupils, while pit vipers have vertical slit pupils.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*'''Sclera''' - The eye has no ossicles (unlike other reptiles) and the sclera is composed entirely of tendinous connective tissue.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*'''Sclera''' - The eye has no ossicles (unlike other reptiles) and the sclera is composed entirely of tendinous connective tissue.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*'''Posterior segment''' - The retina is usually grey mottled with white or red spots and appears with semi-opaque nerve fibres radiating uniformly outwards from the optic disc that is obscured in families having a conus. It is avascular and the membrana vasculosa retinae supply nutrients.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*'''Posterior segment''' - The retina is usually grey mottled with white or red spots and appears with semi-opaque nerve fibres radiating uniformly outwards from the optic disc that is obscured in families having a conus. It is avascular and the membrana vasculosa retinae supply nutrients.</div></td></tr>
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Cporteous
https://en.wikivet.net/index.php?title=Snake_Eye&diff=59529&oldid=prev
Cporteous at 18:20, 22 April 2010
2010-04-22T18:20:51Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 18:20, 22 April 2010</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l8" >Line 8:</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*'''Cornea''' - The pupil is commonly elliptical or round and may give an indication of habitat and lifestyle. Often diurnal species have round pupils and nocturnal species have vertical pupils. Coral snakes and all New World non-venomous snakes, except the boa constrictor have round pupils, while pit vipers have vertical slit pupils.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*'''Cornea''' - The pupil is commonly elliptical or round and may give an indication of habitat and lifestyle. Often diurnal species have round pupils and nocturnal species have vertical pupils. Coral snakes and all New World non-venomous snakes, except the boa constrictor have round pupils, while pit vipers have vertical slit pupils.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*'''Sclera''' - The eye has no ossicles (unlike other reptiles) and the sclera is composed entirely of tendinous connective tissue.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*'''Sclera''' - The eye has no ossicles (unlike other reptiles) and the sclera is composed entirely of tendinous connective tissue.</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*'''Posterior segment''' - The retina is usually grey mottled with white or red spots and appears with semi-opaque nerve fibres radiating uniformly outwards from the optic disc that is obscured in families having a conus. It is avascular and the membrana vasculosa retinae supply nutrients.[[Category:Snake Anatomy]]</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*'''Posterior segment''' - The retina is usually grey mottled with white or red spots and appears with semi-opaque nerve fibres radiating uniformly outwards from the optic disc that is obscured in families having a conus. It is avascular and the membrana vasculosa retinae supply nutrients.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">==Physiology==</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">Accommodation is similar to mammals with changes in the shape of the lens. Unlike mammals, this is under voluntary control by the action of the striated radial muscles within the ciliary body. Mammalian mydriatics therefore do not work in reptiles. However, d-tubocurarine has been used for mydriasis in reptiles. The injection of 0.05 to 0.1ml via a 27-30g needle into the anterior chamber results in mydriasis for 30 minutes to several hours. Reptiles have a rapid direct light reflex but no consensual light reflex.</ins></div></td></tr>
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Cporteous