Popeye also known as exophthalmial. This condition is caused by a wide range of factors including, bacterial infections, parasite infrestations, poor water quality, and internal metabolic system disorders.
One or both eyes protrude form the head in an unusual shape. I refer to fish other then gold fish some of which have been bred for this appearance. The eye lens can be cloudy white looking as well. In some cases the eye will look normal it just protrudes to much, also a white ring is sometimes noticed that circles the eye where it meets the head but the eye other wise looks ok.
OCCURRENCE OF THE SYMPTOMS
The disease usually only affects one or two fish in an aquarium, and is
rarely markedly infectious however that being said. Prevention is the best part of
treatment. I would move any effected fish to its own treatment tank. ( why take chances )
Treatment with a broad spectrum antibotic, injection is the prefered
method if the problem is of a bacterial nature. There is not much other then that
treatment that offers much hope for improvement. I suggest the fish be isolated and give
extra clean water and varied diet. Should the fish show no improvement appear and the fish
shows any sign of distress, destroy them painlessly and consider it a kindness.