Geographic atrophy (GA) is an advanced form of dry age-related macular degeneration (AMD) that causes irreversible vision loss.1
GA Has a Devastating Impact on Patients’ Lives2
need assistance with daily living3
with bilateral GA lose their ability to drive within 1.6 years from diagnosis4*
experience a 10-letter loss in BCVA in 2 years from diagnosis1†
GA can progress from the noncentral area to the foveal centre point in just 2.5 years from diagnosis, and currently affects ∼5 million people worldwide.1,5
Exploring the Pathophysiology of Geographic Atrophy
Multiple potential cellular pathways and stressors have been posited in the pathogenesis of geographic atrophy – from the complement system and the activation of the NLRP3 inflammasome, to visual cycle byproducts and oxidative stress.7,8
*Findings from a UK retrospective cohort analysis with patients with visual acuity (VA) follow-up. The patients were eligible to drive at baseline according to the UK driving standard (VA measure >70 letters or Snellen 6/12 [US Snellen 20/40] in the better-seeing eye) but lost their vision progressively making them ineligible to drive; 1.6 years represents the median (0.7-2.7 years).4
†Analysis of 2006 patients with bilateral GA.1
References:
Anegondi N, et al. Ophthalmology. 2025;132(4):420-430.
Singh RP, et al. Am J Ophthalmol Clin Trials. 2019;2(1):1-6.
Patel PJ, et al. Clin Ophthalmol. 2020;14:15-28.
Chakravarthy U, et al. Ophthalmology. 2018;125(6):842-849.
Lindblad AS, et al. Arch Ophthalmol. 2009;127(9):1168-1174.
Fleckenstein M, et al. Ophthalmology. 2018:125(3):369-390.
Rajanala K, et al. Front Ophthalmol (Lausanne). 2023;3:1327883.
Holz FG, et al. Ophthalmology. 2014;121(5):1079-1091.