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Drop a fundus / anterior-segment photo here, or load one. Then mark the optic disc, cup and fovea to auto-compute the cup-to-disc ratio. Everything stays in your browser — nothing is uploaded.
100%
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Disc analysis OD
Vertical CDR
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Horizontal CDR
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Disc diameter
— mm
Disc area
— mm²
Disc → fovea
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Patient / exam
Clinical — right eye (OD)
Findings 0
No marks yet.
Legend
Disc center
Fovea center
Disc margin
Cup margin
Lesion pin
Measurement