The irregular shape of the eyeball causes light to focus too far in front of the retina (in nearsightedness) or too far behind (in farsightedness). The cornea can also become squashed (astigmatism) which is a common effect of being near sighted. How Eye Exercises Work Eye exercises work by first strengthening the six groups of eye muscles, and then helping them to relax completely each day to improve vision on a progressive basis. They usually form a vision training program of 30-60 days (or more in severe cases) and are known to be effective on all common vision disorders. However, eye exercises cannot cure more serious eye conditions like cataracts, glaucoma and retinopathy.
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The Facts About Eye Floaters and Flashes

If you see a squiggle, dot, or other shape flitting around, then you have found an eye floater. Eye floaters and flashes normally require no treatment. Flashes usually fade away, and over time most people don’t notice floaters as often because the brain learns to filter out the visual interference. An annoying floater in the center of your vision sometimes can be relieved by rolling your eyes around, which swirls the vitreous gel in the eyeball and gets the floater to move away. A surgical procedure called vitrectomy removes the vitreous gel from the eye and replaces it with saline solution, but it is a major procedure that normally is not considered worth the risk.
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