Article

Optic Disc Colour Ratio: A Fundus Pigmentation Proxy for Subgroup Fairness Analysis in Diabetic Retinopathy Screening

2026-06-25

Abstract excerpt

<title>Abstract</title> <p>Automated diabetic retinopathy (DR) screening achieves specialist-level accuracy on curated benchmarks, yet subgroup performance disparities remain poorly understood mechanistically. We introduce the Optic Disc Colour Ratio (ODCR), a fundus pigmentation proxy computed from the peripapillary annulus in CIE L*a*b* space that requires no ground-truth ethnicity labels, and use it to audit a...

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Literature Corpus work: d84c7577-47ec-5dee-baf0-a11cb3d92626
DOI: 10.21203/rs.3.rs-10133196/v1

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