AGI Thanks. With "becoming permanent" do you mean that if you stop at 70% damage, you can start from scratch the next day, otherwise your symptom will be still there after a night of sleep?
Yes.
Also I forgot to add that if I stop at 70% damage, I still need to take 100mg of chelated magnesium right after that - in order to remove the spasm (tenseness). If I don't, then the next day I won't start at "10% damage" - I'll start at "25% damage". And so on.
AGI Can you please remind me the reason why you were prescribed prismatic lenses?
I have latent strabismus (aka heterophoria). Basically I read on ledstrain.org that heterophoria can cause screenstrain, so I found a well-qualified (and well-equipped) optometrist in my area, went to him and asked to be checked for heterophoria. He examined me and said "yes, you have exophoria". So I asked him to sell me prism glasses (like @martin did).
AGI Do you use your glasses for any close-up activity?
I use them for all activity (except when doing body exercises or bathing etc).
AGI Does your principal symptom start even if you read extensively on paper or is it only triggered by electronics?
Only by electronics.
AGI Sorry for the many questions!
It's okay; keep 'em coming. Happy to help!