Myopia, also known as near-sightedness and short-sightedness,[5] is an eye disease[6][7][8] where light from distant objects focuses in front of, instead of on, the retina.[1][2][7] As a result, distant objects appear blurry while close objects appear normal.[1] Other symptoms may include headaches and eye strain.[1][9] Severe myopia is associated with an increased risk of macular degeneration, retinal detachment, cataracts, and glaucoma.[2][10]