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Also Known As – Pop-eye - Exophthalmia
 
Also Known As – Pop-eye - Exophthalmia
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Caused By – Many diseases and infections
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Caused By – Many diseases and infections; see below
    
==Introduction==
 
==Introduction==
 
Exopthalmos or “pop-eye” in fish is the most common ophthalmic pathology and can be the result of many diseases, injuries and infections.
 
Exopthalmos or “pop-eye” in fish is the most common ophthalmic pathology and can be the result of many diseases, injuries and infections.
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Potential causes include [[Trematodes - Overview|trematode]] infection when flukes reside subretinally, [[Infectious Pancreatic Necrosis]], [[Infectious Haematopoietic Necrosis]], [[Viral Haemorrhagic Septicaemia]], ''Icthyosporidium'' infection, [[Tuberculosis]], [[Aeromonas species - Overview|''Aeromomas spp.'']] and [[Pseudomonas species - Overview|''Pseudomonas spp.'']] infections, [[Vibriosis - Fish|Vibriosis]], renal disease
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Potential infectious causes include [[Trematodes - Overview|trematode]] infection when flukes reside subretinally, [[Infectious Pancreatic Necrosis]], , [[Infectious Haematopoietic Necrosis]], [[Viral Haemorrhagic Septicaemia]], ''Icthyosporidium'' infection, [[Tuberculosis]], [[Aeromonas species - Overview|''Aeromomas spp.'']] and [[Pseudomonas species - Overview|''Pseudomonas spp.'']] infections, [[Vibriosis - Fish|Vibriosis]],  [[Enteric Redmouth Disease]], [[Channel Catfish Virus]] and many more.
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Non-infectious causes include [[Gas Bubble Disease]], renal disease and ammonia toxicity.
    
==Distribution==
 
==Distribution==
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Global
    
==Signalment==
 
==Signalment==
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Any type of fish, commercial or ornamental, can be affected.
    
==Clinical Signs==
 
==Clinical Signs==
The eye/s of affected fish appear to be larger and protruding from the skull.
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The eye/s of affected fish appear to be larger and bulging/protruding from the head. Traumatic injury often occurs as a result. Removal of excess gas may resolve minor [[Gas Bubble Disease|gas bubble disease]] or movement to a different tank may allow recovery from ammonia toxicity.
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==Treatment==
 
==Treatment==
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Treatment is highly dependent upon the cause and may or may not exist.
    
==Control==
 
==Control==
 
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Biosecurity and disease prevention protocols are imperative for control of infectious causes of exopthalmos. Traumatic injury can be prevented by environmental design.
    
{{Learning
 
{{Learning
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==References==
 
==References==
 
<references/>
 
<references/>
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Noga, E. J (2010) '''Fish Disease'''. Wiley & Sons. Various sections.
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Ribelin, W. E (1975) '''Pathology of Fishes, Symposium Proc'''. Univ. Wisconsin. pp386-388.
 
Ribelin, W. E (1975) '''Pathology of Fishes, Symposium Proc'''. Univ. Wisconsin. pp386-388.
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Roberts, H. E (2009) '''Fundamentals of Ornamental Fish Health''' Wiley & Sons. Various sections.
    
[[Category:To Do – Manson review]]
 
[[Category:To Do – Manson review]]
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