There is no scientific evidence that eye exercises improve vision or alter the eye's anatomy, according to All About Vision. The American Academy of Ophthalmology issued a statement in 2004 indicating that there is no evidence that visual training has any effect on myopia, hyperopia, astigmatism or progressive eye degradation.
Vision therapy may assist in the correction of eye convergence insufficiency, according to WebMD. This process trains the eye to focus on an object that is brought closer to the eye without causing eye strain and double vision. Eye doctors recommend using glasses, contact lenses, drugs or lasers to correct faulty vision instead of eye exercises.