Before I had ortho-k, I couldn't see well without glasses, I do a lot of exercises everyday, especially I go swimming everyday, so carring glasses was not convenient for me. After I had Ortho-k therapy, I can see well now, my mom is now very happy to see the result of me doing the ortho-k program, it took me only a week to get used to it, it is such a wonderful way to correct my vision. Thanks to Silicon Valley Optometry and Dr. Wun and staffs.