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Arquivos Brasileiros de Oftalmologia

Print version ISSN 0004-2749On-line version ISSN 1678-2925

Abstract

VIANA, Karlos Ítalo et al. Structure-functional correlation using adaptive optics, OCT, and microperimetry in a case of occult macular dystrophy. Arq. Bras. Oftalmol. [online]. 2017, vol.80, n.2, pp.118-121. ISSN 0004-2749.  http://dx.doi.org/10.5935/0004-2749.20170028.

We report retinal functional and structural changes of a 40-year-old man diagnosed with occult macular dystrophy. Comprehensive ophthalmological evaluation was performed, followed by spectral-domain optical coherence tomography (SD-OC - Heidelberg) and image acquisition using an adaptive optics (AO) camera (RTX1, Imagine Eyes) for photoreceptor density analysis. Functional tests included full-field ERG (ERG) and multifocal electroretinography (mfERG) (Diagnosys, LLC) and microperimetry with scanning laser ophthalmoscope (SLO) fixation controlled (MAIA, CenterVUE). OCT revealed a line of discontinuity corresponding to cone outer-segment photoreceptors associated with a loss of cone density, highlighted by a dark blue spot on the AO co ne-density map on the fovea in both eyes. Loss of central sensitivity was revealed using microperimetry; ERG was within the normal range, although the mfERG showed a reduced central response amplitude.

Keywords : Macular degeneration/diagnosis; Photoreceptor cells; Visual field tests; Electroretinography; Tomography, optical coherence.

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