Abstract
Two patients with congenital anomalies involving the optic pathways were described. The 1st case presented a unilateral hypoplastic optic nerve, an ipsilateral inferior conus and an elevated disc. The 2nd case showed the features of homonymous hemianopia with sparing of the macula and decreased visual acuity on the side of the affected cerebral hemisphere. Red-free photographs were obtained in both cases. The importance of this old-new investigative tool in completing a neuro-ophthalmological study was stressed.