G'day. I have a MaineCoon. He is old, roughly about 15 (He was a rescue cat). Over the last month or so I have noticed his left eye reflecting a red color instead of the usual green/yellow (Both his iris' are green). I did take him to the vet who did have a look and was told he had pinpoint cataracts in both eyes. But I cannot find anything regarding why that would make one eye reflect red instead of the usual color. I know for a fact 3 months ago it was reflecting the usual Green/Yellow. Can anyone explain to me why pinpoint cataracts would change the reflection color of one eye?