I'm sorry, I realize now that was incredibly stupid to say, and trivialized a battle you waged with grace and dignity. Please forgive my ignorant statement.
Dang, you've gone through some stuff! I'm so sorry it cost you so much. About the eye being fine, but the brain not recognizing sight, isn't that amazing? Everything starts and ends with the brain. (Even just pain, the signal goes from the brain to the pain point, and then that spot sends a pain signal right back to the brain, and then you're caught in a cycle. I can only imagine the pain you've endured.) I'm really proud od you for doing such intensive work to relearn difficult tasks, things most people take for granted. The fact that you were running into things makes me smile, only because it means you regained the ability to walk, and that's not easy. That's so cool to me.
I hope you find some good support here, and pay zero attention to the haters. They'll hate whether you're doing well or not.