What is the average rate of progression of Geographic Atrophy?

The average rate of progression of Geographic Atrophy (GA), particularly in the context of age-related macular degeneration (AMD), has been well-studied. The correct answer aligns with clinical findings indicating that GA typically progresses at a rate of approximately 1.79 mm/year. This figure reflects an average across a range of studies, emphasizing a moderately slow but consistent expansion of the atrophic area in the retina.

This rate is clinically significant as it helps in monitoring the disease's progression and planning treatment or intervention strategies. Understanding the average progression also aids eye care professionals in setting realistic expectations for patients and their families regarding vision loss and the potential need for future therapeutic options.

The other rates mentioned, while they may be observed in specific cases or studies, do not represent the average progression as commonly documented in literature related to GA associated with AMD. Thus, recognizing the rate of 1.79 mm/year is essential for proper clinical management and research evaluation in the context of geographic atrophy.