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Presbyopia
- ... and makes it hard to see at night. Presbyopia (only in middle-aged adults and older), this ... makes the lens of the eye less flexible. Presbyopia often begins around age 45. Why do I ... for farsightedness in children and adults, and for presbyopia in adults. Color blindness test. Color blindness means ... MD): U.S. Department of Health and Human Services; Presbyopia; [updated 2020 Sep 8; cited 2022 Oct 10]; [ ...