On Friday I noticed him run head-first into several things. I took him to the vet this evening and he is completely blind. She said it is likely hereditary,and that he has likely been blind for 3 months,but she did a few tests to make sure. I'm still waiting for the results of them. But if it is neither of the things she tested for, he is permanently blind :( and he is only 2 years old... I'm still in shock. Please pray for us. Thank you!