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प्रश्न
What type of spectacles should be worn by a person having the defects of myopia as well as hypermetropia? How does it help?
लघु उत्तर
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उत्तर
A person having the defects of myopia as well as hypermetropia should wear spectacles with bifocal lenses, in which the upper part consists of a concave lens and the lower part consists of a convex lens. The upper part corrects myopia, and the lower part corrects hypermetropia.
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पाठ 3: The Human Eyes And The Colorful World - Exercise 2 [पृष्ठ १५९]
