Aging or being old is a natural process that occurs in human life, which begins from children, adults, and eventually become old, and is something that should happen and can not be avoided by anyone. Aging causes some changes in a person , both in terms of anatomical, physiological, and psychological, and it affects the function and life of a person as a whole. In the case of aging deterioration, such as physical deterioration characterized by sagging skin and wrinkles, graying hair, teeth begin toothless, hearing is less clear, deteriorating eyesight, slow motion and body shape is no longer proportional.
Vision System Disorders of The Elderly is one of the important problems faced by the elderly. The decrease in visual function in the elderly make elderly diminished confidence and influence in the fulfillment of their daily activities. Changes in the visual system and eye functions that are considered normal in the process of aging, including decreased ability to perform accommodation , pupillary constriction caused by aging, and discoloration and opacification of the lens of the eye (cataract).
Eyes are organs that transmit sensory stimuli via pathways in the brain to the occipital lobe where the sense of sight is acceptable. In accordance with the aging process that occurs, of course, a lot of changes, including eyebrows turned gray, it can be rough on him, and being thin on the temporal side of both men and women. Conjunctival thinning and yellowish, tear production by the lacrimal gland which serves to moisten and lubricate the conjunctiva will decrease and tend to evaporate quickly, resulting in drier conjunctiva.
In the inner eye, the change is decreased pupil size and reaction to light is reduced and also towards accommodation. Lens yellowing and gradually become more opaque result in cataracts, thus affecting the ability to receive and distinguish colors. Sometimes dark colors like brown, black and maroon looks the same, a gloomy view of the area and reduced adaptation to darkness (hard to see in the dark light) puts the elderly at risk of injury. While the glare can cause pain and limit the ability to distinguish objects clearly. All of the above can affect the functional ability of the elderly.