4 ms·I did many types of eye exercises. Improvements were remarkable. But none were permanent.by dsirijus 13y agoI did many types of eye exercises. Improvements were remarkable. But none were permanent.Dewie 13y agoKinda like regular exercise... ;)dsirijus 13y agoExactly like regular exercise. :) We're presuming here actual corneal deformation which muscles can modify (that's why some squint to see better), and not any of other potential vision-related issues.