Defects of visions and corrections/The human Eye Part-8
Автор: SHRESHTH SCIENCE CLASSES
Загружено: 2023-06-05
Просмотров: 89
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Defects in the eye can occur for a variety of causes. As people become older, their vision deteriorates, and as the focal length changes, so does their vision. The most frequent eye defect is cataract, as we all know. When cataracts are not treated appropriately, they might result in partial or complete vision loss. A cataract occurs when the crystalline lens gets milky and clouded with age. The vision of a person who has cataract surgery can be regained.
When the eye’s capacity to adapt its focus length is lost, difficulties such as blurred vision, inability to perceive local objects, and inability to see far away items arise. When a refractive index deficiency occurs, the person is unable to see objects clearly and comfortably. If not treated promptly, the eyes’ ability to accommodate may be lost totally.
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