Gas bubbles in marine fish eyes

This lyre fish or anthias developed a large pocket of gas around its eye within weeks of importation. It was anaesthetised and removed from the water to have the gas carefully drained with a syringe. More gas reformed within 2 days so the procedure was repeated. Acetazolamide, a drug used to treat glaucoma, was added to the water and prevented further gas reforming. This is thought to be due to a disorder of the blood vessels inside the eyes and a lack of haemoglobin sub-types in specific types of marine fish.

Anthias 1
Anthias 1

A lyre fish with a large pocket of gas around the eye causing severe protrusion of the eye

Anthias 2
Anthias 2

The large pocket of gas around the eye caused severe protrusion of the eye

Anthias 4
Anthias 4

Most of the gas was successfully removed with a syringe and medical treatment prevented further recurrence

Anthias 1
Anthias 1

A lyre fish with a large pocket of gas around the eye causing severe protrusion of the eye

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