Astigmatism is an eye disorder where there is irregular differences in the field of vision. The disorder is similar to near-sightedness (myopia) or far-sightedness (hyperopia), but the distortion of vision is less regular than in those disorders. Astigmatism may be caused by abnormal curvature of the lens or the cornea. Treatment is by eyeglasses or contact lenses.
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- Eye Disorders: Eye disorders can involve vision disorders or physical problems with the eye. Eye disorders may also be called “Ophthalmic Disorders
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- Myopia: Myopia is called near-sightedness in the USA and short-sightedness elsewhere in the English-speaking world. It a vision
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- Hyperopia: Hyperopia, or far-sightedness, is a vision disorder with normal long vision but difficulty with items that are close. Differential
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- Vision: Vision is the sense of sight controlled by the eyes. Vision symptoms include blurred vision, poor vision, dim vision, visual
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- Cornea: The cornea is the clear outer covering of the eyeball. The cornea protects the eye from many external agents. It
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