Abstract
Purpose
To evaluate changes in retinal and choroidal vascularity using swept-source optical coherence tomography (SS-OCT) and optical coherence tomography angiography (OCTA) in patients with systemic lupus erythematosus (SLE).
Methods
In this prospective, cross-sectional study, 48 SLE patients and 40 healthy control (group HC) participants were included. The SLE patients were divided into two subgroups: patients with SLE with no ocular disease (group I) and patients with SLE with signs of retinopathy (group II). The superficial vessel density (SVD), deep vessel density (DVD), peripapillary retinal vessel densities (pRVD), choroidal thickness (ChT), and choroidal vascularity including total choroidal area (TCA), luminal area (LA), stromal area (SA), and choroidal vascularity index (CVI) were measured using SS-OCT/OCTA. Physical and ophthalmic examinations as well as the assessments of immunological markers were performed. The results of SS-OCT/OCTA were compared between group I, group II, and group HC, while the correlations among the parameters were analyzed.
Results
The SVD, DVD, and pRVD were found to be significantly lower in SLE patients than group HC, especially in SLE patients with signs of retinopathy. ChT were found to be significantly higher in group II. CVI was positively correlated with SVD and DVD in the fovea, as well as the foveal and parafoveal thickness. A significant decrease in SVD and DVD in the fovea among subjects positive for anti-dsDNA antibodies was noted.
Conclusions
The application of OCTA in the evaluation of microvasculature may be useful in subclinical changes. Retinal microvascular density decreased in patients with SLE with greater severity of SLE. Disturbed retinal circulation was related to SLE disease activity, disease duration, CVI, and being positive for anti-dsDNA antibodies. The study results also suggest that SLE with signs of retinopathy may affect the choroid with increases in LA, SA, TCA, and ChT.
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Project supported by the Science and Technology Commission of Shanghai Municipality, China (Grant No. 20Y11911200).
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All procedures performed on human participants followed the 1964 Declaration of Helsinki and its later amendments after receiving proper approval from the Human Research Ethics Committee of the Eye & ENT Hospital of Fudan University (No. 2021005–1). Informed consent was obtained from all participants.
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Guo, T., Jin, Y., Zhou, M. et al. Quantitative evaluation of retinal and choroidal vascularity in systemic lupus erythematosus by SS-OCT/OCTA. Graefes Arch Clin Exp Ophthalmol 261, 3385–3393 (2023). https://doi.org/10.1007/s00417-023-06155-5
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DOI: https://doi.org/10.1007/s00417-023-06155-5