I lost my vision in one eye when I had my first stroke. When my vision came back I had severe diplopia (double vision) in both eyes and I lost my driving licence for four years. When I first joined WP I still had trouble seeing. I went to visual rehabilitation therapy and wore pop-bottle glasses (thick prism lenses).
Regardless of the stroke damage I've always had very poor eyesight including Visual Snow Syndrome, eyes that can move independently, a convergence disorder, and poor vision both up close and at distance.
I'd say I'm legally blind with regard to reading if I don't wear my glasses. I wouldn't even be able to read a stop sign. I spend about $3,000 every two years on special glasses.
My mother has Macular Degeneration and needs needle injections in her eyes. It's genetic and I have some signs of it as well. MD causes blindness. My brother lost his eyesight last year when his optic nerves disintegrated literally overnight. They never did figure out what caused him to go blind.
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I never give you my number, I only give you my situation.
Beatles