The good news is...

Youre not going to lose your vision. Ive had it for about 20 years now and from what I can tell and remember its stayed about the same throughout my life. I can still see fine, except for the snow. As for advice id say you need to look at this as any other obstacles you may have physically. If youre short you probably wouldnt be a center for a basketball team. But if you learned how to be extremely fast and have an accurate jump shot you could still play, even become the MVP of that team. Everyone in life has hidden problems that youll never know about, and they will figure out how to use what they have to be happy and be successful. Understand that this is a part of you now... Whatever it is, and that you can still live a pretty cool life. I ride motorcycles, play sports, started a business, dated plenty of hot girls and so on. Stay strong, and go make sure this isnt the most important chapter in your life, spin it into something the readers would never see coming