Hi hun, nothing in MS is normal lol. You should read my post have we been dealt the joker card. YES WE HAVE. Heat changes can do all kinds of things. when it is too warm my eyes go blurry. I have had several lots of ON. I can tell when its going to kick off as my eyes start first with weird things.
Heat or temp changes can exacerbate symptoms and also kick of weird stuff.
If the change in vision happens, yes just move away. I cant stand flourcescent lights so in my kitchen my light is never on. I have shutters on my windows and they are mainly closed with minimal light lol. Light is my nemisis.
Your bound to be scared it is scary, but its just MS. I believe. BUT if you have any worry about your eye health at all talk to a member of your team ok.
BUT I have experienced all of this. when its warm i cant differenitate colours. red looks pink, green looks grey. or is it the other way round lol. I have put on what i thought was green trousers then realise they are grey lol.
My daughter had to help me choose my colours for my sitting room as what i though was red was a weird colour lol.
anyway sorry to say welcome, but it seems your MS is under control according to the MRI so just take a breath MS is a bumby roller coaster ride with a lot of weird things.xx