Still degrading, he's gone as far as he can with glasses. He can see well enough to read, but he really has to concentrate on it. He is about to turn 22, he's been dealing with this for about 8 years when it was detected. So, I'm thinking he probably has another 10 years before it gets to the point where everything is too blurry or dim to really affect him. The problem is a genetic defect passed from his mom and only affects males, OPA1. It's a depletion or lack of mitochondria in the optic nerve. There has been some research in the area and some look promising in the future.