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Geographic atrophy (GA), also known as atrophic age-related macular degeneration (AMD) or advanced dry AMD, is an advanced form of age-related macular degeneration that can result in the progressive and irreversible loss of retinal tissue (photoreceptors, retinal pigment epithelium, choriocapillaris) which can lead to a loss of central vision over time.
In advanced stages of AMD, atrophy of the RPE (geographic atrophy) and/or development of new blood vessels (neovascularization) result in the death of photoreceptors and central vision loss. [citation needed] In the dry (nonexudative) form, drusen accumulates between the retina and the choroid, causing atrophy and scarring to the retina. In the ...
Topographical disorientation is the inability to orient oneself in one's surroundings, sometimes as a result of focal brain damage. [1] This disability may result from the inability to make use of selective spatial information (e.g., environmental landmarks) or to orient by means of specific cognitive strategies such as the ability to form a mental representation of the environment, also known ...
Researchers at the University of Colorado Anschutz Medical Campus received up to $46 million in a grant to help develop an innovative treatment to cure blindness.
NAION is the most frequently diagnosed sudden optic nerve disease in adults over 50, predominantly affecting Caucasians, [27] with variable rates reported in Asian populations, [28] [29] and affecting males more than females. [30] Presentation can vary, but patients typically report painless visual loss upon waking up in the morning or after a ...
Sarcopenia is linked to an increased risk of dementia, a new study finds, but suggests that older adults may reduce this risk by exercising and consuming adequate protein.
Changes in either the VMD2 or RDS gene can cause the adult-onset form of vitelliform macular dystrophy; however, fewer than a quarter of cases result from mutations in these two genes. In most cases, the cause of the adult-onset form is unknown. The VMD2 gene provides instructions for making a protein called bestrophin. [4]
"It meant a lot to my dad because he was diagnosed with cancer when I was four months pregnant." Molly Bryant Related: Mom of 4 Shares Daughter's $5,000 Christmas List — and Why She's Planning ...