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biological

Judged: two independent readers; copy check clear.

nearsightedness

nearsightedness Nearsightedness is a focusing problem of the eye where incoming light comes to a point before it reaches the retina when the eye is not adjusting focus.

Nearsightedness is a focusing problem of the eye where incoming light comes to a point before it reaches the retina when the eye is not adjusting focus. It is associated with a cornea that bends light too much or an eyeball that is longer than usual from front to back.