Need to no water stats in ammonia,nitrite,nitrate,and ph, as cloudy eye is a symtom of a desease rather than a desease in it's self.
Not the writer of this information below.
Cloudy Eye- This condition is diagnosed by visually inspecting the fish's eye(s) and body. Either one or both of the eyes will be cloudy in appearance. The fish itself may be off colour or distressed. Cloudy eye affects many tropical aquarium fish such as barbs, cichlids, live-bearers and catfish. This infection can be caused by various bacterial infections, and can also cause damage to the fish's nervous system. If your fish seem to have this condition, don't worry, it is very easy to get rid off. Poor water conditions are usually to blame, so first perform a water change. Then you will want to check you water conditions and maintenance your filter. The addition of salt to your aquarium can also ease the disease and prevent re-infection. If these measures do not work, take a visit to your local pet store and purchase a bottle of anti-bacterial medication.