Geographic atrophy (GA) is a severe, progressive, irreversible vision loss in old age people. The loss in the vision is due to the damage in a small portion of the retina at the back of the eye, known as the macula. Since the loss of vision is due to age, it is also referred to as Age-related macular degeneration. (AMD). Geographic atrophy is an advanced form of dry age-related macular degeneration (dry AMD). Dry AMD is a result of deposition of small yellow substance, known as drusen, which leads to thinning and drying out of macula.
As estimated by the Angiogenesis Foundation, Geographic Atrophy affects more than 5 million people worldwide, out of which 22% of p...