presbyopia
n. An inability to focus on near objects, usually caused by a loss of elasticity in the lens of the eye due to aging. Acuity for distant objects is usually unimpaired as it requires less stretching of the lens in order to focus.
n. An inability to focus on near objects, usually caused by a loss of elasticity in the lens of the eye due to aging. Acuity for distant objects is usually unimpaired as it requires less stretching of the lens in order to focus.
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