Vision correction is a field of optometry that focuses on correcting refractive errors of the eye. Refractive errors occur when the eye is unable to focus light properly, resulting in blurred vision. Common vision correction methods include eyeglasses, contact lenses, and refractive surgery. Eyeglasses are the most common form of vision correction, and are used to correct nearsightedness, farsightedness, and astigmatism. Contact lenses are a more discreet form of vision correction, and can be used to correct the same refractive errors as eyeglasses. Refractive surgery is a more permanent form of vision correction, and is used to reshape the cornea of the eye. Some companies in the vision correction market include Johnson & Johnson, Bausch & Lomb, CooperVision, Alcon, and Zeiss. Show Less Read more
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