Feke, G T Response of human retinal blood flow to light and dark. [electronic resource] - Investigative ophthalmology & visual science Jan 1983 - 136-41 p. digital Publication Type: Journal Article ISSN: 0146-0404 Subjects--Topical Terms: Adaptation, PhysiologicalAdultDarknessHumansLasersLightPhotoreceptor Cells--physiologyRegional Blood FlowRetinal Vessels--physiologyUltrasonography