Sorry if I my post was confusing, Natalie . . . I seem to be having one of those days.

For me, Uhthoff's (worsening of vision, due to heat) is a very temporary symptom. I heat up by showering, or by working in the garden, and my vision goes wacky almost immediately upon a raise in body temp. Then when I cool off, often within 5 - 15 min, it goes back to normal. The way I know it is Uhthoff's for sure is that it only happens in one eye, and the vision change (good/bad/good) is very obvious.

That this problem seems to be affecting you most of the day, leads me to believe it wouldn't be simply Uhthoff's.

So, that brings the likely options back to ON, or just your eyes worsening (which they do in our 40's ...).

When I had ON, there were times (days/hours) that weren't as bad as other times. I don't know if everyone is like this, but there were certain times (like when I first woke up) that I could barely see at all. It was also much worse in the dark (with lights), or in the bright sunshine.

So, when I was tested the first two times, she could NOT get me to 20/20. The third time she did (testing done on different days), BUT in the end that rx wasn't right anyway. That was DURING the ON attack though.

Every day was different for me, basically, although there were some patterns; NOT heat/stress related; mostly lighting that made it worse, during my period of ON.

The damage is most often NOT permanent with ON, at least not as bad as when the ON was at it's worst. We can be completely blind, and recover eventually. Once the ON has healed, then you can see where your new "norm" is. For me, that meant an increase in lense to -6.50 (from -5.75) . . . but I have not gone back to check and see if that gives me 20/20 vision. I doubt it, but it is the best I could get to.

Whether they were able to correct somewhat for the ON "damage" with this new rx, I'm not sure. I did have ON, I did recover, my rx did increase . . . but I don't think I got back to 20/20 after that episode.

Does that make any more sense? If it doesn't, ask away . . . I might have clearer thinking in the morning.

Cherie