I have the same problems and my doctors know I read constantly. I am finishing a Ph.D.
Have you talked with your doctors? The surgeons who know your eyes can best answer this, but I do not believe reading can harm you, unless your are recovering from surgery.
The doctors here will also give you some feedback.
I AM ASKING IF I CAN JOIN PH.D IN LIFE SCIENCES? OR IT CAN PUT STRAIN ON MY EYES . OR I SHOULD OPT FOR SOME EASY COURSE SO AS TO MAINTAIN MY EYE SIGHT FOR LONG RUN?
I think you are asking if it is a good idea. You have a proclivity for that kind of work; I think you might be good at it, plus you have motivation to find answers. It would also take patience. Try contacting people in that field for an opinion, not for a jog, at first, any way.
That's how I found out that I should NOT be a lawyer.
Best of luck. I have bum retinas also.
I'm not sure what you're asking. Whether you want to do retinal research or be enrolled in a retina study. In either case with that degree ou know how to search the internet for answers to either proposition.
JCH MD