What does this fluorescein angiography show?
This fluorescein angiography is taken at the venous
phase of the right fundus. The choroidal fluorescein
is absent given a picture of dark choroid.
Suggest some possible causes.
Abnormal deposition of substances at the layers of
the RPE that blocks the transmission of the choroidal
fluorescein. This can occur with Stargardt's
disease or argyrosis.
This patient has atypical Stargardt's disease in that
the typical pisciform flecks are absent (the flecks
are usually hyperfluorescence)
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