Myopia cannot last

Presbyopia, that is, presbyopia, has symptoms that the nearsightedness cannot be sustained, and the inadequate adjustment is that the nearpoint gradually becomes farther away, and the nearby objects can be clearly seen after efforts. With the increase of age, the ability of eye adjustment gradually declines, causing patients with near vision difficulties, so that in close work, a convex lens must be added in addition to its static refractive correction to have clear near vision. This phenomenon is called old See (presbyopia).

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