A ____ Lens is Used to Correct Myopia and a ____ Lens is Used to Correct Hypermetropia (A) Concave, concave (B) Convex, convex (C) Convex, concave (D) Concave, convex

Answer: Concave, convex

Explanation: 

Myopia is also known as short-sightedness, which describes a condition in which a person has a strong vision when looking at things close to them but has difficulty seeing things that are further away. This condition can be easily rectified by placing a concave lens in front of a myopic eye, which brings the image closer to the retina and makes it clearer.

Long sight, also known as hypermetropia, is a condition in which a person has distorted vision when looking at things close to them but has a clearer picture when looking at things that are further away. When a convex lens is placed in front of an eye with hypermetropia, the picture is moved forward and properly focused on the retina.