Two cases of big blind spot syndrome without optic disc edema Mami Ishida 1 , Kenji Yuda 1 1Dept of Ophthalmol, Yokohama City Univ Sch of Med pp.1703-1707
Published Date 1989/10/15
DOI https://doi.org/10.11477/mf.1410211026
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We observed the syndrome of acute symptomatic monocular enlargement of blind spot without disc edema in 2 healthy subjects aged 16 and 31 each. Both cases noted blind area with photopsia in the temporal visual field of the affected eye. The enlar-ged blind spot measured more than 10 degrees by Goldmann and automated perimetry. Visual acuity and color vision was slightly affected. Funduscopic and fluorescein angiographic findings were almost normal. Pupillary reaction was slightly affected inone case. Electroretinogram, visual evoked poten-tial and CT findings were normal. Photostress recovery time was prolonged in the affected eye in both cases. Spontaneous recovery set in one case. Complete cure resulted in the other after systemic corticosteroid treatment. The present findings seemed to suggest disturbed optic nerve functions as underlying the big blind spot syndrome.

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