Not to dampen the enthusiasm of newbies here, before you post such a question, have you ever thought to try the least used button on the site, the search function? You'll be amazed that you actually get results!
This subject has come up almost every year since PPrune began.
btw, and fwiw, after flying for almost 40 years and almost 30,000 hrs airborne and never having worn sunglasses, my eyesight is about as good as can be expected in a 60 yr old. I began to wear corrective lenses for reading about 6 years ago. I can assure you the wrinkles were there when I was at school!