I got up this morning to find out that my largest oscar has something like a contact lense on one of its eyes. im not sure what it is, know anything about it?

Does the eye look cloudy, or does it look like there is something attached to the actual eyeball?

Okay, the first thing you must do is test your water before ammonia, nitrite, nitrates and pH. If this is indeed a cloudy eye, there is a possibility that poor water conditions are the cause. it could be a something as simple as just like trauma to the eye which hopefully will clear up. If it isn't serious, it should start improving within a few days.

while waiting for the water test result, i suggest 25%
water change as precaution. add some pure salt to comfort
the fish and enhance oxygenation. blurred eyes or anything
unusual should not be taken lightly. remeber, they are in
captivity and could only go as far the tank size is. better
do water change than sorry.

sarren wrote:


maybe he just scratch his eye.

As paul said, do a 25-30% water change and add some pure salt.
it could be a number of things, but first of, can you let us know your water levels?

i have experienced this with oscars ..not saying yours is the same but mine were from abrasions/rubbing to the lense from transportation

Cloudy eyes can be caused by a about a bajillion different reasons, hopefully this chart can help you find out which one:

www.fishyfarmacy.com/fish_diseases/eyes.html