Why does accommodation lag (the delay in focusing on near objects) increase more sharply in individuals with early-stage presbyopia compared to age-matched individuals with normal vision?

💡 Explanation

Accommodation lag increases in presbyopia because the ciliary muscle's ability to contract and change the lens shape declines, therefore near focus adjustments take longer and are less effective in presbyopic individuals, rather than primarily issues in pupil reflexes, retinal responses, or vitreous opacity.

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