My right knee had been injured from a bad fall on the ice two winters ago but it had never properly healed and this past summer it was still bothering me. Then three months after using the Mito Red Light every night for 15 minutes my knee problems went away. I had doubted if I could continue with my part time job as a skiing instructor, but I went on to teach skiing again as well as taking an added vacation Skiing in Colorado early this past March. Since I have had such success with my knee, I had another question, would either the red or infrared light exposure help with the with the health of my eyesight? I am over 65 and I was wondering red or infrared light might heap the health of my eyesight?