Which condition is associated with aging and affects the ability to see clearly at close range?

Presbyopia is a common vision condition associated with aging, and it specifically impacts the ability to see clearly at close range. This condition occurs due to a gradual loss of the eye's ability to focus on nearby objects, typically becoming noticeable in individuals over the age of 40. The lens of the eye becomes less flexible with age, making it more difficult to adjust focus for near tasks such as reading or sewing, leading to reliance on reading glasses or other corrective measures.

In contrast, myopia, or nearsightedness, is a refractive error that usually manifests in childhood or adolescence and affects distance vision rather than near vision. Glaucoma refers to a group of eye diseases that can damage the optic nerve, typically linked with increased pressure in the eye, and it does not primarily affect close-up vision. A chalazion is a small, non-painful lump or swelling on the eyelid due to a blocked oil gland, and it too does not pertain specifically to the aging process or near vision difficulties. Thus, presbyopia is the most accurate choice for the condition related to aging that affects the ability to see clearly at close range.