perifovea perifovea perifovea is a region in the retina that circumscribes the parafovea and fovea and is a part of the macula lutea. the perifovea is a belt that covers a 10° radius around the fovea and is 1.5 mm wide. the perifovea ends when the henle's fiber layer disappears and the ganglion cells are one-layered. photograph of the retina of the human eye, with overlay diagrams showing the positions and sizes of the macula, fovea, and optic disc additional images schematic diagram of the macula lutea of the retina, showing perifovea, parafovea, fovea, and clinical macula time-domain oct of the macular area of a retina at 800 nm, axial resolution 3 µm spectral-domain oct macula cross-section scan. macula histology (oct) a fundus photograph showing the macula as a spot to the left. the optic disc is the area on the right where blood vessels converge. the grey, more diffuse spot in the centre is a shadow artifact.