Cat?s Eye Appears Darker

CatChannel veterinary expert, Arnold Plotnick, DVM, explains that pigmentation of the iris can develop in older cats.

By Arnold Plotnick, DVM | Posted: August 29, 2008 2 a.m. EDT

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Q: Recently, I noticed that the iris of one of my 16-year-old cat’s eyes has gotten darker. It started in the corner and spread throughout the entire eye. It does not appear that the pupil has been affected. Do you think it is cause for concern?

A: Pigmentation of the iris often develops in cats as they get older. In most cases, only one eye is affected. It can affect a small part of the iris, or in some cases, it can involve the entire iris. In the majority of these cases, the pigmentation is benign. However, melanomas of the iris, although uncommon, have been described in cats. To be on the safe side, I’d have your veterinarian check it out. Your best bet would be to have the eye evaluated by a board-certified veterinary ophthalmologist.

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eyemkerupted    Smyrna, TN

3/15/2011 3:41:18 PM

My cats iris has been gradually getting darker and darker, she has orange eyes. Shes also 7yrs old. Here lately shes been shedding wads of fur... Im going to take her to the vet. I found it informative.

Shelby Larason    Oakdale, MN

2/13/2011 11:34:36 AM

i saved a kitty from being uthenized at 5 weeks old. my concern is that he has been getting ill thoughout his now, 9 months of his life, we have had every test done on him, and all come back ok, or negative. recently, this last past week he developed a temperature of 105, which has been treated, along with runny and mucky eyes, and his appetite has decreased alot with weight loss. his highest weight has been up to 5lbs 11 ounces. he now weighs 4 lbs 14 and 1/2 ounces. the only thing we have not had done is an ultrasound, which we plan on doing in march to see if they can see anything from results of that.currently over the past week, he has ran a high fever of 105 along within the last three days his eyes look very foggy, like a cataract is forming in both eyes, was told by the vet that the high fevers may be to blame, but he actually seems to be going blind, if not fully blind now within the past two days! he gets fluids every other day administered at our vets office. he is currently on prednisolone, metronytizole, and neo poly dex ointment for his mucky eye problem.also had a pennicillin shot yesterday. we are highly concerned for his over all continuing health problems.
i was curious to know if you may be able to read this and have any input, information, or any suggestions for me about my kitty cat? Please help me with suggestions, I am desperate for all and any information about all of his issues. thank you. please respond!

Cathy    Hubbard, OH

4/6/2009 7:20:30 AM

Old age is a B no matter human or animal. Thanks for the information

Cathy    Hubbard, OH

9/3/2008 2:01:06 PM

Very informative, thanks.

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