My Cat's Eye Looks Cloudy

CatChannel veterinary expert Arnold Plotnick, DVM, discusses aging and eye issues in cats

By Arnold Plotnick, DVM | Posted: May 21, 2010, 3 a.m. EST

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Q: My cat is 9 and one of his pupils has started to look milky. He does have dilation in both pupils. His behavior is the same. I am just worried he may be going blind.

A: As cats get older, the lenses in both eyes acquire a slightly cloudy appearance. This natural aging change is called lenticular sclerosis and it is often mistaken for cataracts. It doesn’t affect vision and is nothing to worry about.

I’m concerned about your cat, however, since only one eye is affected. With lenticular sclerosis, both eyes are affected. Cats’ pupils can vary in size, from a tiny little slit to big round open circles, depending on the ambient light. However, pupils that stay dilated all the time may be a sign of a vision problem. You need to take your cat to your veterinarian. Depending on the findings, he or she may refer you to a veterinary ophthalmologist for further evaluation. 

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Reader Comments

Dawn    Highland, MI

5/10/2011 6:05:22 AM

I have a russian blue kitten. Is it normal for her eyes to be watery a lot? My other breeds of cats were never like this, so i wanted to know if this ia typical of this breed?

Betty    Hayes, VA

12/23/2010 4:46:22 AM

The answer to my question was spoken to in this article. It helps to relieve my concerns. Thanks.

Janet    Bethlehem, PA

11/13/2010 10:29:50 AM

good article, thanks

;S    ;XS, MN

6/7/2010 3:05:34 AM

LDF

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