You can find a few vision tests online that should all be possible from your PC screen or cell phone. Decisions extend from astigmatism, near-sightedness, and even the Ishihara exam mentioned earlier. Remedial refractive mistakes are essential to keep your vision healthy and produce as minute strain as conceivable on the muscles that encompass the eye. Disorders like farsightedness, the powerlessness to concentrate on close articles because of light beams centring past the retina and myopia, the condition where the light beams miss the mark concerning the retinal centre, can without much of a stretch be amended with a couple of endorsed eyeglasses.