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A. Singh, J. Belkin; OCT Findings of Superior Segmental Optic Nerve Hypoplasia . Invest. Ophthalmol. Vis. Sci. 2006;47(13):4035.
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To describe OCT findings of superior segmental optic nerve hypoplasia in fraternal twins.
Fraternal twins aged 47 years (one male and one female) were noted to have inferior arcuate visual field defects in both eyes. Intraocular pressures were normal. Optic nerve evaluation was performed. Nerve fiber layer was assessed with optical coherence tomography.
On ophthalmoscopy, asymmetric superior segmental pallor and hypoplasia of the optic disc was noted in both eyes of each patient. OCT (circular scan) confirmed loss of nerve fiber layer thickness superiorly in all 4 eyes. Even macular thickness was reduced superiorly. There was a history of maternal diabetes.
OCT findings are useful in establishing the diagnosis of superior segmental optic nerve hypoplasia.
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