My stray cat's pupils are slits and eyes foggy. Is he sick or blind?
Hello and thank you for reaching out to Petco Pet Education Center, formerly Petcoach. Small or constricted pupils may be a sign of uveitis, which means inflammation in the front chamber of the eye. This can be due to infectious causes (bacterial/viral/fungal), high blood pressure, immune-mediated diseases or trauma, among other things. Cats with uveitis are often painful, however, and will show squinting of the eyes, will be sensitive to light, are often hiding, etc. It is possible that he has no ocular issues, and that you have just never observed his pupils in a dark room (this is very hard to do!). You can test if he can see by gently motioning toward his eyes with your hand (called a menace response) to see if he blinks. If he is squinting his eyes, has abnormal discharge (yellow/green, thick/mucoid), or very red conjunctiva, I recommend bringing him to your veterinarian to be evaluated. I hope this is helpful!
Updated on September 23rd, 2025