
Presbyopia
Age-related
Presbyopia is linked with aging, so it's used in contexts discussing vision changes as people get older.

My dad needs reading glasses due to his presbyopia.
Not Disease
Unlike diseases, presbyopia is a normal part of aging. It isn’t caused by external factors.

Everyone will experience presbyopia if they live long enough.
Vision Focus
Presbyopia specifically affects the ability to see close-up objects clearly, not distance vision.

She realized it was presbyopia when she couldn't read the phone book.
Compare with
Hypermetropia
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