Optic Disc Pit with Peripapillary Retinoschisis Presenting as a Localized Retinal Nerve Fiber Layer Defect

Abstract

A 59-year-old woman was referred to our clinic for a glaucoma evaluation. The visual acuity and intraocular pressurewere normal in both eyes. However, red-free fundus photography in the left eye showed a superotemporalwedge-shaped retinal nerve fiber layer defect, and visual field testing showed a corresponding partial arcuatescotoma. In an optical coherence tomography examination, the macula was flat, but an arcuate-shaped peripapillaryretinoschisis was found. Further, the retinoschisis seemed to be connected with a superotemporal optic pitshown in a disc photograph. After 3 months of a topical prostaglandin analogue medication, the intraocular pressurein the retinoschisis eye was lowered from 14 to 10 mmHg and the peripapillary retinoschisis was almost resolved.We report a rare case of an optic disc pit with peripapillary retinoschisis presenting as a localized retinal nerve fiberlayer defect.