Lazy eye goes away on ritalin

I’ve had a lazy eye since I was a child caused by having really poor vision in one of my eyes. Last year i started taking 10mg Ritalin but haven’t been taking it consistently because my eye with amblyopia (lazy eye) starts to hurt. I never knew why until someone pointed out that my lazy eye just went away. I still have a lazy eye when not on Ritalin, but when i take it I can just use both eyes again. I assume the eye pain is because the muscles in my left eye just haven’t been used a lot in the past 19 or so years so its just a side effect of my eye muscles being really weak. But i cant figure out why my eye just moves now and my psychiatrist hasn’t heard of this happening to anyone.