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Optical Coherence Tomography Angiography of RPGR-Associated Retinitis Pigmentosa Suggests Foveal Avascular Zone is a Biomarker for Vision Loss
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Optical Coherence Tomography Angiography of RPGR-Associated Retinitis Pigmentosa Suggests Foveal Avascular Zone is a Biomarker for Vision Loss

Peter H Tang, Ruben Jauregui, Stephen H Tsang, Alexander G Bassuk and Vinit B Mahajan
Ophthalmic surgery, lasers & imaging retina, Vol.50(2), pp.e44-e48
02/01/2019
DOI: 10.3928/23258160-20190129-18
PMCID: PMC7357791
PMID: 30768229

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Abstract

RPGR-associated retinitis pigmentosa (RP) is a progressive disease with retina degeneration. Optical coherence tomography angiography (OCTA) is an imaging technique that provides novel insights. The authors report two affected male siblings who underwent OCTA imaging. The area of the foveal avascular zone (FAZ) was measured. Although the younger sibling exhibited more advanced clinical disease, his visual acuity was superior to his older sibling. OCTA imaging revealed a better preserved FAZ in the younger sibling as the reason for this. It also highlighted attenuation of choriocapillaris / choroid layers as biomarkers for disease severity. This provides new insights into retinal degeneration in RPGR-associated RP. [Ophthalmic Surg Lasers Imaging Retina. 2019;50:e44-e48.].
Fluorescein Angiography - methods Humans Middle Aged Retinitis Pigmentosa - genetics Choroid Male Fovea Centralis - diagnostic imaging Retinitis Pigmentosa - diagnostic imaging Tomography, Optical Coherence - methods Vision Disorders - diagnosis Vision Disorders - genetics Biomarkers Eye Proteins - genetics Capillaries

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