My daughter had retina reattachment operation {3 of them} They didn't save the sight in the eye. Her other eye is now -1 with a astqmatism. She uses the computer for hours at a time. Do we need to limit her computer use. They had told us the left eye could do the same thing and we are worried about her eye sight. They alson lazered the retina on her left eye to bond it stronger to the eye.