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.