Can Your Eyes Change From Farsighted and Nearsighted

Normal, nearsightedness, and farsightedness

Overview

Normal vision occurs when light is focused directly on the retina rather than in forepart or behind it. A person with normal vision tin can see objects clearly near and faraway.

Nearsightedness results in blurred vision when the visual image is focused in front of the retina, rather than directly on it. It occurs when the physical length of the eye is greater than the optical length. For this reason, nearsightedness often develops in the speedily growing school-aged child or teenager, and progresses during the growth years, requiring frequent changes in glasses or contact lenses. A nearsighted person sees almost objects clearly, while objects in the distance are blurred.

Farsightedness is the result of the visual image being focused behind the retina rather than directly on it. It may exist acquired past the eyeball being too pocket-sized or the focusing power being also weak. Farsightedness is often nowadays from nascence, but children tin often tolerate moderate amounts without difficulty and most outgrow the condition. A farsighted person sees faraway objects clearly, while objects that are near are blurred.

Updated by: Franklin W. Lusby, MD, Ophthalmologist, Lusby Vision Constitute, La Jolla, CA. Likewise reviewed past David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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Source: https://medlineplus.gov/ency/imagepages/19511.htm

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