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Bietti crystalline retinal dystrophy with subfoveal neurosensory detachment and congenital tortuosity of retinal vessels: case report

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Abstract

A 34-year-old man presented with reduction and distortion of vision in both the eyes. The best-corrected vision was 20/20 parts, N6 in either eye. The external and slit lamp examination of both the eyes was unremarkable. The fundus examination showed multiple intraretinal crystalline deposits at the posterior pole, extending up to midperiphery, tortuous retinal blood vessels with S-shaped deflections, and absent foveal reflex in both the eyes. There were no corneal crystals, and the color vision was defective in both the eyes. Fundus autofluorescence and fundus fluorescein angiogram (FFA) were suggestive of geographic areas of retinal pigment epithelium (RPE) and choriocapillary (CC) loss. OCT revealed subfoveal neurosensory detachment. Flash ERG and EOG were normal except for a slight decrease in amplitude and delay in latency of pattern ERG waveforms. The Humphrey’s visual field showed paracentral scotoma with reduction in the amplitude of waveforms from the corresponding area in the multifocal ERG in both the eyes. Systemic evaluation for crystalline retinopathy was unremarkable. He was diagnosed to be a case of Bietti crystalline retinopathy (local/regional variant). The subfoveal neurosensory detachment could represent early RPE dysfunction caused by these crystals and could account for the mild visual disturbance in both the eyes. Retinal vascular tortuosity and neurosensory detachment seen in this case is the first time to be reported in literature.

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Authors and Affiliations

  1. Retina Vitreous Services, L V Prasad Eye Institute, Bhubaneswar, India

    Tapas Ranjan Padhi

  2. Miriam Hyman Children’s Eye Care Centre, L V Prasad Eye Institute, Bhubaneswar, India

    Siddharth Kesarwani

  3. Smti Kanuri Santhamma Centre for Vitreo Retinal Diseases, Kallam Anji Reddy Campus, L V Prasad Eye Institute, Hyderabad, India

    Subhadra Jalali

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  1. Tapas Ranjan Padhi
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  2. Siddharth Kesarwani
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  3. Subhadra Jalali
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Correspondence to Tapas Ranjan Padhi.

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Padhi, T.R., Kesarwani, S. & Jalali, S. Bietti crystalline retinal dystrophy with subfoveal neurosensory detachment and congenital tortuosity of retinal vessels: case report. Doc Ophthalmol 122, 199–206 (2011). https://doi.org/10.1007/s10633-011-9274-1

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  • DOI: https://doi.org/10.1007/s10633-011-9274-1

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