Yes it is possible by physiotherapy
of eye to reduce the refractory error. That means exercise of eyes in a proper manner.
Medicines do not help much because refractory error is a problem of weakness of eye muscles rather than improper nutrition. But B-Complex with Vitamin A
and VItamin E
would be useful.
Overuse of eyes in front of television / vidoe games / mobile games is a major culprit.
Our eyes were not meant to be used much for near work. Our ancestors were food gatherers and hunters. So eyes were meant to look far.
So no watching Television and exercising.