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Abstract #21107 Published in IGR 10-2
Differentiation and combination of optic nerve hypoplasia and glaucoma
Fujimoto NNeuro-Ophthalmology Japan 2007; 24: 426-432
Among patients with optic nerve hypoplasia, those with superior segmental optic hypoplasia (SSOH) are known to have a good visual acuity and visual field defects in the lower visual field. Since SSOH has an enlarged cupping and a rim thinning in the upper part of the optic disc, it needs to be differentiated from glaucoma. SSOH can be diagnosed when the retinal nerve fiber layer defects in the upper part of the optic disc and the visual field defects corresponding with the nerve fiber layer defects are present. SSOH may have visual field defects in the upper, temporal, and nasal field. Temporal visual field defects are thought to be due to nasal hypoplasia of the optic disc. Nasal and upper arcade scotomas are thought to be glaucomatous, since the nerve fiber layer defects within the retinal vessel arcade correspond to the visual field defects. SSOH should be followed by static automated perimetry in order to detect these glaucomatous visual field defects. LA: Japanese
Dr. N. Fujimoto. Department of Ophthalmology and Visual Science, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
Classification:
10 Differential diagnosis e.g. anterior and posterior ischemic optic neuropathy
