The lens capsule is attached to the ciliary body by a ligament and serves to refract and focus light rays on retina. Loss of flexibility with age causes presbyopia, characterized by focusing of image behind the retina. Likewise, too short eyeball causes hyperobia. In both cases, distant images are clear but the nearby images are blurry and the condition is termed as hypermetropia. This makes option C correct and option D incorrect. On the other hand, myopia or nearsightedness is caused by elongation of eyeball which results in focusing of image in front of retina. Thus, the distant images are blurry but the nearby images are clear. This makes option B incorrect. Cataract is characterized by presence of opaque lens, incapable of transmitting the light rays and is corrected by surgical replacement of lens with artificial lens. This makes option A incorrect. Correct answer is C.