As person age, the natural lens in eye becomes less flexible. This lack of flexibility, called presbyopia, compromises the eye's ability to switch from one focal point (e.g., distance) to another (e.g., near).
The practical effect of presbyopia is that person lose ability to read or see close objects without reading glasses or bifocals.
The practical effect of presbyopia is that person lose ability to read or see close objects without reading glasses or bifocals.
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