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The eye defect, astigmatism can be corrected by using(a) Convex lens(b) Concave lens(c) Cylindrical lens(d) Surgery
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Components of a sphero-cylindrical lens prescription (S: sphere, C:... | Download Scientific Diagram
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Cylindrical Lens Stock Illustrations – 53 Cylindrical Lens Stock Illustrations, Vectors & Clipart - Dreamstime
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