2025年12月12日 · Geographic atrophy (GA) is an advanced stage of age-related macular degeneration (AMD). It happens when the cells and blood vessels in an area of your retina break down and die. The...

2023年4月5日 · Geographic atrophy is a medical term that refers to later-stage cases of dry age-related macular degeneration (AMD). Macular degeneration is an eye condition that affects the macula of your retina. It dramatically affects your central vision — what you see straight ahead.

2025年3月6日 · Geographic atrophy (GA) is an advanced form of dry age-related macular degeneration. You may have vision loss that happens over time. Here’s what you can expect. With...

2024年12月30日 · Find out more about age-related macular degeneration and learn how it causes a condition called geographic atrophy. As GA can lead to irreversible vision loss, it’s best treated as early as ...

Geographic Atrophy (GA), is an advanced form of dry age-related macular degeneration (AMD) that causes cell death (atrophy) in areas of the retina and can lead to irreversible vision loss. It is characterized by large, well-demarcated sections of the retina that stop functioning.

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 ov...

2024年3月6日 · People with geographic atrophy (GA) of the eye's light-sensitive retina experience the progressive loss of retinal pigment epithelium (RPE). The RPE is a layer of cells between the retina's photoreceptor cells and the layer of blood vessels underneath that nourishes the retina.

Geographic atrophy (GA) is a chronic progressive degeneration of the macula as part of late-stage age-related macular degeneration (AMD). The disease is characterized by localized sharply demarcated atrophy of outer retinal tissue, retinal pigment epithelium (RPE), and …

Geographic atrophy (GA). A, Color fundus photograph of right eye, demonstrating advanced GA. B, Corresponding fundus autofluorescence image from the same patient. The areas of RPE atrophy are hypoautofluorescent (dark gray or black), the areas of “sick” RPE are hyperautofluorescent (brighter than background), and the areas of healthy RPE are gray.

Access helpful resources and learn about the signs and symptoms of geographic atrophy (GA), an advanced form of age-related macular degeneration. Review how GA causes vision loss, the role of the immune system's complement cascade, and how APL-2 (pegcetacoplan) may work as a possible treatment.