I've had generalized MG for 3 years, and only in the last few months have I felt I've had ocular symptoms, which are very minor. I don't have ptosis or double vision. When I do too much, I have full-on exhaustion, have to lay down and sleep. My ocular symptom is hard to describe. I would say my eyes have trouble catching up with where I'm trying to read, so my vision seems blurry until they catch up. This can be reading a book or scanning products at the grocery, for example. It is usually when the meds are wearing off, I feel. Also, when I take too much mestinon, I get an eye twitch and a bit of blurriness that wears off after an hour or so.