Abstract
Purpose
Retinal manifestations are present in 10% of patients with systemic lupus erythematosus (SLE) and consist of vascular changes that can be sight-threatening. Optical coherence tomography angiography (OCTA) is a novel imaging modality that detects movement inside the blood vessels without dye injection and transforms this movement into an angiographic map. The aim of this study is to describe subclinical vessels changes in the eyes of patients with SLE but no retinal manifestations.
Methods
In this cross-sectional study, 15 patients with SLE but no clinical ophthalmic manifestations were scanned through OCTA of the iris and at the level of the macula. Qualitative aspects of the iris vessels, and measure of the foveal avascular zone (FAZ) and vessel density were compared to a cohort of 15 normal controls.
Results
Patients with SLE, even in the absence of ophthalmic manifestations, present a qualitative increase in the iris vessels flow, and enlargement of the FAZ (0.22 ± 0.12 mm2) and a decrease in the vascular density (11.221 ± 1.933 mm−1) of the superficial capillary plexus on OCTA that cannot be highlighted clinically.
Discussion
OCTA can be used in a noninvasive way to detect subclinical vascular changes in patients with SLE. How this information will influence the follow-up and management of these cases will require further prospective studies with a collaborative effort between ophthalmologists and rheumatologists.
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Pichi, F., Woodstock, E., Hay, S. et al. Optical coherence tomography angiography findings in systemic lupus erythematosus patients with no ocular disease. Int Ophthalmol 40, 2111–2118 (2020). https://doi.org/10.1007/s10792-020-01388-3
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DOI: https://doi.org/10.1007/s10792-020-01388-3