What question did this study set out to answer?

To investigate the histologic changes in an eye with geographic atrophy (GA) associated with age-related macular degeneration (AMD).

April 10, 2026Open Access

Histologic Photoreceptor and Retinal Pigment Epithelium Degeneration in an Eye With Clinically Documented Geographic Atrophy of AMD

Key Points

To investigate the histologic changes in an eye with geographic atrophy (GA) associated with age-related macular degeneration (AMD).
Conducted a clinicopathologic correlation analysis of an AMD eye with known GA growth rate.
Measured areas of photoreceptor shortening and RPE loss using composite metrics.
Examined mitochondrial changes at the ELM.
The area of photoreceptor degeneration exceeds the area of retinal pigment epithelium (RPE) loss.
Photoreceptor degeneration starts from outer segments and progresses inward.
Dysmorphic yet continuous RPE was observed at the OJZ.

Abstract

In this first clinicopathologic correlation of an AMD eye with a known GA growth rate, the area of rPSi (a composite representing photoreceptor shortening, disorganization, altered waveguiding, and true cell death) exceeds the area of RPE loss. The OJZ exhibits dysmorphic but continuous RPE. Photoreceptors degenerate from the outer segments inward. Mitochondrial fission and translocation at the ELM descent may be visible clinically.

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Cite This Study

Curcio et al. (Tue,) studied this question.

synapsesocial.com/papers/69d893626c1944d70ce04586 https://doi.org/https://doi.org/10.1167/iovs.67.4.12

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