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| align="left" | This question was provided by [[:Category:Manson|Manson Publishing]] as part of the [[OVAL Project]].  See more [[Category: Avian Medicine Q&A|Avian Medicine questions]]

| align="left" | This question was provided by [[:Category:Manson|Manson Publishing]] as part of the [[OVAL Project]].  See more [[:Category: Avian Medicine Q&A|Avian Medicine questions]]

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[[File:Manson avian med 17.jpg|500px|centre]]

[[File:Manson avian med 17.jpg|500px|centre]]

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'''The condition in the right eye of this long-eared owl(''Asio otus'') is illustrated using mydriasis induced by air sac perfusion anaesthesia (APA).'''

'''The condition in the right eye of this long-eared owl (''Asio otus'') is illustrated using mydriasis induced by air sac perfusion anaesthesia (APA).'''

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<FlashCard questions="3">

<FlashCard questions="3">

There is traumatic nuclear cataract and false cataract with multiple black pigment spots on the anterior lens capsule with slight dyscoria of the iris. There is a dim reddish fundus reflex due to the absence of a tapetum lucidum and the

There is traumatic nuclear cataract and false cataract with multiple black pigment spots on the anterior lens capsule with slight dyscoria of the iris. There is a dim reddish fundus reflex due to the absence of a tapetum lucidum and the

poorly pigmented fundus in nocturnal bird species.

poorly pigmented fundus in nocturnal bird species.

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|l1=Traumatic Eye Injuries - Birds

|q2= Which additional ophthalmological diagnostic procedures would you perform?

|q2= Which additional ophthalmological diagnostic procedures would you perform?

|a2= The slight dyscoria of the iris as well as the black spots on the anterior lens capsule are residues of the posterior surface of the iris due to partial dissolution of the posterior synechia.  

|a2= The slight dyscoria of the iris as well as the black spots on the anterior lens capsule are residues of the posterior surface of the iris due to partial dissolution of the posterior synechia.  

Since this is a condition with a traumatic aetiology, ophthalmoscopy of the contralateral eye – which usually appears outwardly healthy – is indicated for prompt recognition of intravitreal haemorrhage.

Since this is a condition with a traumatic aetiology, ophthalmoscopy of the contralateral eye – which usually appears outwardly healthy – is indicated for prompt recognition of intravitreal haemorrhage.

|l2=

|l2=Traumatic Eye Injuries - Birds

|q3= What is the treatment?

|q3= What is the treatment?

|a3= Rupture of the lens capsule leads to lens protein leakage into the anterior chamber; upon contact with the anterior uvea this is recognized as foreign material, resulting in uveitis.  

|a3= Rupture of the lens capsule leads to lens protein leakage into the anterior chamber; upon contact with the anterior uvea this is recognized as foreign material, resulting in uveitis.  

Cataract resection – preferably by phacoemulsification – is obligatory to prevent complete inflammatory destruction of the eye.

Cataract resection – preferably by phacoemulsification – is obligatory to prevent complete inflammatory destruction of the eye.

|l3=

|l3=Traumatic Eye Injuries - Birds

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[[Category: Avian Medicine Q&A]]

[[Category: Avian Medicine Q&A]]