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Presbyopia describes an age-related condition similar to farsightedness. It typically becomes noticeable around age 45. In children and young adults, the lens inside the eye can easily focus on distant and near objects. With age, the lens loses its ability to focus on items close to the eyes. Although presbyopia is not completely understood, experts think that the lens and its supporting structures lose the ability to change shape or make the lens longer during close vision efforts.


To compensate for the difficulty in seeing objects close up, affected individuals usually find that holding reading material farther away makes the image clearer.