Among other degenerative conditions, vision impairment is one of the leading causes of morbidity in the elderly. Since people get older, there are greater risks to develop age-associated eye diseases and conditions that potentially lead to vision loss. One of eye problems frequently found in elderly people is age-related macular degeneration, known shortly as AMD. To prevent vision loss, awareness and regular eye screening are vital. If abnormalities are early detected and diagnosed, timely and appropriate treatments can be given accordingly, resulting in decreased severity and delayed disease progression.
Get To Know Age – Related Macular Degeneration (AMD)
Age-related macular degeneration happens when the macular which is the central area of the retina responsible for clear vision in the direct line of sight begins to deteriorate. If age-related macular degeneration develops without proper and timely treatments, it eventually causes central vision loss. Age-related macular degeneration is characterized by drusen, defined as small yellow deposits of fatty proteins or lipids that accumulate under the retina, the alterations of retinal pigment epithelium (RPE) and the formation of choroidal neovascular membranes which are new blood vessels. Vision loss can be caused by this abnormal blood vessel growth. Sometimes abnormal new blood vessels grow from the choroid under and into the macula (known as choroidal neovascularization). The choroid is the layer of blood vessels between the retina and the outer, firm coat of the eye (sclera). These abnormal blood vessels may leak fluid or blood (subretinal fluid), interfering with the retina’s function and causing subretinal hemorrhage, an accumulation of blood between the neurosensory retina and RPE. In addition, subretinal fibrosis, defined as the development of band- or plaque-like areas of fibrosis underneath the retina can also be formed.
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