Name the type of lens used to correct.
- Myopia.
- Presbyopia.
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- Myopia: The type of lens used to correct Myopia is concave lens.
- Presbyopia: An eye that suffers from myopia as well as from hypermetropia is said to suffer from presbyopia. A person with this defect cannot see objects distinctly placed at any distance from him. To correct this defect, a person is prescribed bifocal lens that has both types of lenses convex and concave.
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