Shine Amidst Darkness—A Case of Oguchi Disease

Abstract An 11-year-old boy presented with complaints of defective night vision. Visual acuity was 6/6 in both eyes. The fundus showed a golden-to-grey discoloration in light and on dark adaptation, the fundus reverted to its normal appearance demonstrating the classical Mizuo-Nakamura phenomenon. T...

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Bibliographic Details
Published inTNOA Journal of Ophthalmic Science and Research Vol. 62; no. 3; pp. 358 - 360
Main Authors Padmapriya, R, Akbar, Fathima Fahima
Format Journal Article
LanguageEnglish
Published Wolters Kluwer Medknow Publications 01.09.2024
Subjects
electroretinogram
mizuo–nakamura phenomenon
oguchi disease
rhodopsin
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Summary:Abstract An 11-year-old boy presented with complaints of defective night vision. Visual acuity was 6/6 in both eyes. The fundus showed a golden-to-grey discoloration in light and on dark adaptation, the fundus reverted to its normal appearance demonstrating the classical Mizuo-Nakamura phenomenon. The electroretinogram showed abnormal rod responses and normal photopic responses. An electroretinogram done after overnight dark adaptation showed partial recovery with subsequent attenuation. Screening of family members showed abnormal electroretinogram findings in his father and brother. This case is portrayed on account of its rarity.
ISSN:2589-4528
2589-4528
DOI:10.4103/tjosr.tjosr_42_24