When I was 1st diagnosed, they did tell me that I must of had ON at some point in my life. I did have a scotoma at that time and it took a while to go away. I still have trouble with my field of vision in my left eye.
I agree with Erin. If the pain is really bad, call your dr. as soon as you can. From what I understand, early treatment of ON can help prevent permanent vision loss.
Let us know how you are doing.
