Utility of the ganglion cell complex thickness map in glaucoma: the presence of raphe sign

Macular ganglion cell complex (GCC) thickness map is a functional ancillary test to detect early structural changes in glaucomatous optic neuropathy (GON). The temporal raphe sign is present in almost all patients with narrow retinal nerve fiber layer (RNFL) defect, especially when there is a small angular distance between the fovea and the RNFL defect. A case series of patients with GCC thickness map and a positive temporal raphe sign is presented