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Lumen.
AI for retinal imaging.

Retinal imaging research, starting with diabetic retinopathy grading from fundus photographs.

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Retinal fundus image with marked regions for closer review
Lumen · A closer look at retinal health
CAPABILITY HIGHLIGHT

SightDx Retinal Grading

Explore the model, reported evidence, and input limits.

FUNDUS PHOTOGRAPHY

SightDx Grading Engine

Classifies diabetic retinopathy on the 0–4 ICDR scale from fundus photographs, generating attention heatmaps and clinical summaries.

CLINICAL TRIAL

Sachdeva Netralaya Validation

Piloted in hospital screening workflows, achieving a 0.8965 quadratic weighted kappa agreement with experienced ophthalmologists.

INPUT BOUNDARIES

Microvascular Focus

Documented input: fundus photographs. Other optical modalities remain research areas.

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