Diagnostic Atlas Booklet - A Reference Guide

Using di erent channels to distinguish Choroidal Nevi from Choroidal Melanoma

Choroidal Nevi

Composite View

Choroidal Nevus

Choroidal Melanoma

Choroidal melanoma can be visualized on all channels of an opto map image. This is a diagnostic distinction from a choroidal nevus which appears only in the red channel.

Red Channel

Green Channel

Nevus disappears in green channel

Nevus is visible in red channel

Choroidal Melanoma

Choroidal Melanoma

Melanoma is visible in both channels

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Diagnostic Atlas