An individual with presbyopia attempts to read a book. Which mechanism explains why the image appears blurry, even when the ciliary muscles contract to accommodate near vision?

💡 Explanation

In presbyopia, the lens loses elasticity; therefore, even with ciliary muscle contraction, the lens cannot sufficiently change shape to focus on near objects, because lens elasticity diminishes rather than a change in cornea power or retinal cone density. Vitreous humor is unrelated.

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