As small astrocytic hamartomas can sometimes be missed during routine ophthalmoscopy in patients with tuberous sclerosis, fluorescein and/-or indocyanine green angiography maybe more helpful in identifying such small astrocytomas. In fluorescein angiography, astrocytomas show gradually increasing hyperfluorescence due to the vascular permeability of astrocytomas. In indocyanine green angiography, astrocytomas appear hypocyanescent, most prominently during the late phases. We report the indocyanine green angiographic findings of retinal astrocytomas in a patient with tuberous sclerosis.