I posted really late last night but I'm trying again. About a week ago I noticed that only one of my cat's eyes reflects light. I took the picture below last night while holding his eyes open to get a good shot. The non reflective eye has a small part of the second of showing and today I noticed it is a little red, he is holding that eye a tiniest bit more closed than the other eye. He doesn't seem to be in pain, I can't tell if there is vision loss or not though it doesn't seem so. He is otherwise acting normal. He's about 11-12 years old and has asthma as well.
Anyone seen this before?