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Macular degeneration, also known as age-related macular degeneration (AMD or ARMD), is a medical condition which may result in blurred or no vision in the center of the visual field. [1] Early on there are often no symptoms. [1] Over time, however, some people experience a gradual worsening of vision that may affect one or both eyes. [1]
age-related macular degeneration; vertebrobasilar insufficiency; optic neuritis; visual snow syndrome; Vitreous shrinkage or liquefaction, which is the most common cause of photopsia, causes a pull in vitreoretinal attachments, irritating the retina and causing it to discharge electrical impulses. These impulses are interpreted by the brain as ...
In persons who are over 65 years old, age-related macular degeneration is the leading cause of severe vision loss. A subtype of age-related macular degeneration, wet macular degeneration, is characterized by the formation of new blood vessels that originate in the choroidal vasculature and extend into the subretinal space. [5]
Macular degeneration, also known as age-related macular degeneration (or AMD) is the most common cause of severe vision loss in people over age 60, affecting an estimated 20 million Americans.
Micropsia is a condition affecting human visual perception in which objects are perceived to be smaller than they actually are. Micropsia can be caused by optical factors (such as wearing glasses), by distortion of images in the eye (such as optically, via swelling of the cornea or from changes in the shape of the retina such as from retinal edema, macular degeneration, or central serous ...
In some cases, dry macular degeneration can convert to “wet” degeneration, caused by “bleeding or a leaky blood vessel,” that leads to a much more rapid loss of visual acuity, explains ...