This morning it was beautiful here in northern Michigan so I decided to wash some windows. Up and down and over the head arm movements are tough on most people and I take my time.

By the time I got the the south west side of the house, it was getting pretty warm. I started feeling a little weak....but kept going. As I was getting pretty warm, my eye sight seemed to fade in the center of my vision. Like I had lost contrast and color.....a white veil down the center of my vision.

I went in the house to cool off and it went away in less than 10 minutes. Could this be optic neuritis? It has happened to me before when I get hot and over exert myself.

I've had ON twice and each time it began with pain. Pain whenever I moved my eye from side to side or up and down. I also had vision distortion but always had the pain, too. I'm thinking your situation was just overheating.

I agree with Kelly, Karilann. The heat will do that to me every time..

It sounds exactly like Uhthoff's phenomena, Karilann.

http://mssociety.ca/en/information/s...ng_uhthoff.htm

All should return to baseline.

(My ON also started w severe pain on moving my eye.)
ANN

I agree. I had that symptom sporadically back while I was trying to get diagnosed. The first time, I thought I was getting a migraine or maybe an ocular migraine.

Then I read about people with MS having ON and losing their sight, and it scared the tar out of me. However, my ophthalmologist said my optic nerve looked perfectly healthy, and it still does.

I don't get it very often anymore, and that's probably because I try not to get overheated or overexert myself.

Even though I now know what it was/is (in my case), it's still an unsettling feeling.

The first time I had pain on eye movement and then over the course of 2 or 3days, lost the color, brightness and then the vision completely. It came back within a month or so. Subsequent bouts of it were simialr to the first but I never lost the vision completely.

It has left very large blind spots in the center and upper areas of the visual field and the above symptoms of ON come back if I get overheated, over tired or ill.

Have you had ON before this? If so, maybe the combination of heat and fatigue obstructed the symptoms from being compensated for. That's what seems to happen in my case.

With love, Erika