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  • Title: [Oguchi disease or stationary congenital night blindness: a case report].
    Author: Boissonnot M, Robert MF, Gilbert-Dussardier B, Dighiero P.
    Journal: J Fr Ophtalmol; 2007 Jan; 30(1):e2. PubMed ID: 17287664.
    Abstract:
    INTRODUCTION: Oguchi disease, originally described in Japanese people, is a rare form of stationary night blindness in patients with normal acuity. OBSERVATION: We report the case of an 8-year-old girl who presented with an abnormal terrified behavior in the dark. Thorough questioning revealed hemeralopia. Her clinical examination (visual acuity, Goldmann visual field, and color vision) were normal. The fundus examination showed golden-brown color, grayish, almost greenish yellow discoloration in the peripheral area with no osteoclast. This abnormality disappeared after prolonged dark adaptation. The electroretinogram showed a reduced b wave amplitude under scotopic conditions. Her parents were cousins. CONCLUSION: This diagnosis should be suggested when hemeralopia is associated with typical fundus aspect resolving after dark adaptation (so called Mizuo-Nakamura phenomenon). The long-term prognosis in these patients is good in the absence of clinical progression. This is a genetic autosomal recessive disease caused by mutations in the gene coding for arrestin located in 2q37.1.
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