By Shreoshree Chakrabarty: Geographic Atrophy (GA) is an advanced form of age-related macular degeneration (AMD) that results in progressive and irreversible vision loss, particularly in older adults.

Enlarge Figure 2-1 Clinical manifestations of AMD on different imaging modalities: Source: Fleckenstein M, Schmitz-Valckenberg S, Chakravarthy U. Age-Related Macular Degeneration: A Review. JAMA ...