Here's my personal story .... Early 20's I was about to take my driving test , you are required to read a car number plate at 25 meters and I was having trouble ... I was told I needed glasses ...!

I didn't like that idea , wearing glasses all my life ! What a hassle .... Some how I came upon the "Bate's technique " also called "palming " ... You are basically blasting your eyes with the chi that comes from the palms of your hands , just for 15 secs a day ... it will cure any eye issue , my sight soon improved , passed driving test and now 45 years latter my sight is perfect . I still practice it now and again , with eyes open staring into the palms of my hands , it feels good to do.