A woman in her late 30s diagnosed in childhood as having amblyopia in the left eye presented for examination. Visual acuity was stable since childhood: 20/20 OD and 20/100 OS with a relative afferent pupillary defect in the left eye, stereopsis of 100 arc-seconds, and 10 of 10 Ishihara color plates in each eye. Ophthalmoscopic examination of the left eye showed a temporal optic nerve head pit (ONHP) and optical coherence tomography showed absence of the internal limiting membrane, ganglion cell, and nerve fiber layers in the distribution of the papillomacular bundle (Figure).
Aboobakar IF, Mettu P, El-Dairi MA. Optic Nerve Head Pit With Sectoral Inner Retinal HypoplasiaA Bottomless Pit. JAMA Ophthalmol. 2015;133(6):e1572. doi:10.1001/jamaophthalmol.2015.72