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Choroidal Nevi
9
Diagnostic Atlas
Green Channel
Red Channel
Using di erent channels to distinguish
Choroidal Nevi from Choroidal Melanoma
Choroidal Nevus
Choroidal Melanoma
Composite View
Nevus disappears
in green channel
Nevus is visible
in red channel
Choroidal Melanoma
Choroidal Melanoma
Melanoma is visible in both channels
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.