I have not experienced it firsthand. But I have fasted in a center before and among the many miracles the director shared with us was a woman who came in with horrific eyesight and thick glasses and left completely healed and able to see well without glasses. He encouraged her to fast without her glasses on - He says that when you give the body a crutch it uses it. You might want to play around with that.
Around the middle of my mega 60 day fast a couple years ago my eyesight improved to the extent that I no longer needed glasses to watch tv, and had to sit in the back of the theater to see a movie!!! I figured it would be temporary, but two years later I had my prescription redone as things were looking a little blurry (figuring my eyesight had gotten worse)... in fact, my prescription had improved by a full point! The change has remained permanent after four years of industrial strength body cleansing (fasting, professional colonics and liver flushing being my mainstays).
Yep, whatever your cleansing goals, I'm here to tell you it CAN be done! It only took me four years (!) but I turned 50 with a clean pink colon... the amazing part is how long it took me to pack all that gunk IN there! That's the big challenge now--KEEPING it out! Curezone is a very special place to help us all get it together and keep it together.