I'm doing it! I'm getting my body and my life back in shape after a very long year of losing weight and muscle. I'm starting with 3-4 times a week, doing rowing, speed walking (can't run or "bounce" my head) and basic weight lifting. Yesterday I rowed so hard I could hardly use my legs, as they felt a bit like Utah green Jello. :) It was great.
I exercised daily, right up until the day of my diagnosis last year, then life went crazy. It feels so good to do something so "normal" and even taxing on my body. It tells me I am gaining strength, gaining energy and regaining so many parts of my life that were on hiatus for a year.
Exercising, even walking, I will never take for granted again. I look forward to the day when my eye is functioning again and I can do more exercising outside, but until then, my basement gym will do! :)