As a person ages, the lens in their eye stiffens; what causes reduced near-vision sharpness, rather than distance sharpness, due to this decreased lens curvature?

💡 Explanation

Age-related stiffening of the lens reduces accommodation, because the ciliary muscles can no longer increase the lens curvature sufficiently to focus on nearby objects. Therefore, near vision degrades first, rather than distance vision, which requires less focusing power.

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