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PRESBYOPIA, a defect of vision common in older adults, is BEST corrected by:
AA simple concave lens for clear distance vision
BBifocal spectacles, with concave above + convex below
CA single convex lens for distance vision
DNo correction is normally needed for presbyopia
Answer & Solution
Correct answer: B. Bifocal spectacles, with concave above + convex below
Presbyopia is age-related loss of accommodation. If the person ALSO has distance problems (often myopia or hypermetropia), bifocal spectacles correct both: typically concave (top, for distance) + convex (bottom, for reading).
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