I think this has been covered before but not in such a young cat.
My friends wonderful 2 1/2 yr old cat, Finny, was fine in the am and as of yesterday evening appears to be completely blind! He seems fine otherwise. Eating, drinking, using his box and grooming. He's, of course, on his way into the vet, but I was wondering if any of you guys had ever experienced such a thing. All we could come up with was: tumor (but such a young cat!), detatched retina (in both eyes?), blunt force trauma (he doesn't appear to have any bumps, bruising or tenderness anywhere).
It's quite a mystery. Hopefully the vet can tell them what's wrong and hopefully it's reversable.