Why does a 60-year-old need reading glasses to focus on near objects, even though their distant vision remains sharp?

💡 Explanation

Presbyopia occurs because the lens loses elasticity, hindering the ciliary muscles' ability to increase lens curvature for near focus. Therefore, near vision blurs, rather than issues with pupil dilation, retinal detachment, or vitreous opacity, which affect overall visual acuity.

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