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Human Body & Health

If a patient with presbyopia is prescribed pilocarpine eye drops, which consequence follows regarding near vision focusing?

A)Lens curvature decreases sharply.
B)Ciliary muscle tone diminishes further.
C)Accommodation amplitude shows marked improvement.
D)Pupillary dilation impairs image clarity.

💡 Explanation

Pilocarpine, a muscarinic agonist, stimulates the ciliary muscle to contract, increasing lens curvature and accommodation amplitude. This improves near vision focusing. Pupillary constriction also enhances focus. This occurs because pilocarpine enhances parasympathetic tone, therefore accommodation is improved, rather than ciliary relaxation or optical degradation from dilation.

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