A 60-year-old woman presents with progressive central metamorphopsia. Fundus shows large soft drusen and geographic atrophy not involving the foveal center in the right eye. OCT confirms atrophy of the retinal pigment epithelium and outer retina with no subretinal fluid. According to the Beckman classification, what stage of AMD is this?
- A Early AMD
- B Late AMD (geographic atrophy) ✓
- C Intermediate AMD
- D Late AMD (neovascular)
Correct answer: B. Late AMD (geographic atrophy)
Explanation
Geographic atrophy involving the central retina (even if the very center is spared) constitutes late AMD under the Beckman classification. Intermediate AMD (option C) shows large drusen without geographic atrophy or neovascularization. Early AMD (option A) shows only medium drusen. Late neovascular AMD (option D) would show fluid, hemorrhage, or CNV, which are absent here.
Reference: Beckman Classification of Age-Related Macular Degeneration, Consensus, Ophthalmology 2013 ed.
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Written and medically reviewed by the StethoPrep medical team.