Presbyopia is a condition that occurs due to the loss of the flexibility of lens with the old age. It creates difficulty in focussing on near objects. It can be corrected by using convex lens.
Myopia or nearsightedness is a condition in which the eyeball is longer than normal. Light rays converge in front of retina forming a blurred image. The condition can be corrected by using concave lens.
Hypermetropia or farsightedness is a condition in which the eyeball is shorter than the normal. Light rays strike the retina before converging causing a blurred image. The condition can be corrected by using convex lens.
Anepia is a cognitive disorder marked by an impaired ability to comprehend or express language in its written or spoken form.
Thus, the correct answer is option B.