Assertion: fundus's sign | /r/HasProperty | exclusive
Facets:
Source sentences:
text: This sign, not exclusive of Stargardt disease, derives from a lack of early choroidal hyperfluorescence, which is blocked by high-grade lipofuscin accumulation in the RPE, thus improving visualization of the small retinal capillaries that become easily evident over the dark, non-fluorescent and high-contrast choroid.