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BOOK TITLE: Retina: Medical and Surgical Management
This chapter mainly talks about the optic nerve head pit with maculopathy. Optic nerve head pits or optic disc pits (ODP) are congenital localized excavations present commonly on the inferotemporal aspect of the optic disc. They can be oval or round in shape and may vary in color from gray, white to yellow. Incidence of OPD is rare and occurs in about 1 per 11,000 patients. Most ODPs are asymptomatic. They become symptomatic only when associated with macular changes, such as neurosensory detachment (serous) over macula (25% to 75% of cases) which generally presents in the 3rd or 4th decade. Fundus fluorescein angiography (FFA) in an eye with optic pit generally reveals hypofluorescence in early stages and hyperfluorescence in late stages. Treatment, course, and outcomes of optic nerve head pit are also discussed in this chapter.