Why does my cat's eye look green in flash photos? Is it normal?

This is normal in dogs! It's a part of their anatomy (also in cats and other similar species) called the tapetum lucidum. This is what gives dogs that glowy, reflective look and a "red eye" when looking into a camera or light at night. Here's an article on the structure of the eye that you're seeing: https://www.acvo.org/tips-treatments-tricks/why-do-my-dogs-eyes-shine-at-night

It is difficult to say without a picture, if not an eye exam. Tapetal reflection can be seen during daylight depending on where you and Tomita are in relation to a light source. If this is the case, the eye could be normal. If the shining is in the anterior chamber, this could be uveitis, a problem with the iris, a lipid Deposit, or other. The fact that the eye is visual and comfortable is a great sign but a good eye exam (with a veterinary ophthalmologist if it is very unusual) is a good idea.

When you take photos of your pets or people and the flash hits the eyes at a certain angle you will be able to see through the pupils to the back of the lense which has a lot of blood vessels. This will appear red and is normal. This will often happen when you take pictures of people also. Here you have some information: http://www.yalescientific.org/2011/05/what-causes-the-red-eye-effect/

Thanks for using Petco Pet Education Center, formerly Petcoach! She is gorgeous! Her eyes are likely reacting to the light and her surroundings and this is unlikely to be an actual issue. I would continue to monitor her for signs of eye discharge or discomfort and have her evaluated if any of these are seen. However, I think she is most likely just fine. Good luck!

Thank you for submitting your question regarding your cat. I recommend that he sees a veterinarian. He seems to have an opacity in his eye. This can be on the cornea (surface of his eye) or on the lens. He could have a scratch across his eye or even a scar. If the problem is on his lens, then a cataract is a possibility. His veterinarian will examine his eye with a special instrument called an ophthalmic scope. Some tests may be recommended as well. I hope this information helps!

It is common for kittens to undergo an eye color change. If your cat is an older cat though, it may signify infection or more serious underlying disease. Any sudden change in eye color should be addressed by your vet or veterinary ophthalmologist.

I would be concerned that Ball might have inflammation in his eye that has caused the color change to his iris - this condition is known as anterior uveitis and can have many potential underlying causes. Growths on the iris might be another possibility. I'd recommend having his eyes examined by your vet. They may want to check the eye pressure.