Ah, those are just fancy names for near-sightedness and far-sightedness, bhai. Myopia needs a concave lens, and hypermetropia a convex one, with the power calculated from the focal length. But all this talk of lenses feels like patching an old quilt when you could weave new cloth—that's why I'm saving for LASIK. This tailor's son is tired of the wire frames slipping down his nose while bending over his measurements.
#exams#study
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