if you're light sensitive you don't need a prescription for a pair of sunglasses
if you have trouble with standing unassisted, you don't need a prescription for a mobility aid
if you have dyslexia, you don't need a prescription to change the display font or use a screen reader.
if it makes your life easier, you don't need doctor permission, and anyone that says otherwise just wants you to suffer.
even if its you, to yourself.
quit that.