What type of lens is used for hypermetropia or long-sightedness?
HYPERMETROPIA
Hypermetropia is also called hyperopia or long sightedness. It occurs when the human eye is shorter than normal and the image is focused behind the retina. The result is that distant objects may be seen clearly, but close objects appear blurry. A convex (converging) lens helps by bending light rays inward so the image forms correctly on the retina.
concave lens → myopia or short-sightedness
cylindrical lens → astigmatism
tinted lens → used for sunglasses
convex lens → hypermetropia or long-sightedness
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