Observational studyInternational ophthalmology2021
Is optical coherence tomography angiography a useful tool in the screening of hydroxychloroquine retinopathy?
Observational study in International ophthalmology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
8 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.
- Application of optical coherence tomography angiography for microvascular changes in patients treated with hydroxychloroquine: a systematic review and meta-analysis.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2023Pooled it
- Retinal microvasculature changes in long-term consumption of hydroxychloroquine.Scientific reports · 2026Article
- Optical Coherence Tomography and Angiography in Hydroxychloroquine Retinopathy: A Narrative Review.Diagnostics (Basel, Switzerland) · 2026Review
- Optical coherence tomography angiography parameters in patients on hydroxychloroquine therapy.International ophthalmology · 2026Article
- Optical coherence tomography angiography features in a case of hydroxychloroquine retinopathy.International journal of ophthalmology · 2023Article
- Evaluating the Use of Hydroxychloroquine in Treating Patients With Rheumatoid Arthritis.Cureus · 2021Review
- Evaluation of optical coherence tomography angiography parameters in patients treated with Hydroxychloroquine.BMC ophthalmology · 2021Article
- Update on Retinal Drug Toxicities.Current ophthalmology reports · 2021Review
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTo detect the early changes in retinal vasculature via optical coherence tomography angiography (OCTA) by comparing the quantitative OCTA parameters in the group of patients who were using hydroxychloroquine (HCQ) or not.
methodsThis was a cross-sectional, comparative, and observational study. The patients who were newly or previously prescribed HCQ for an autoimmune disease were included. OCTA imaging was performed via OCT RT XR Avanti with AngioVue software (Optivue Inc, Freemont, CA). The study group had two groups: a control group (patients newly diagnosed and who were not taking any medication) and a treatment group (patients who were receiving HCQ treatment). The main outcome measure was OCTA parameters.
resultsA total of 102 eyes of 102 patients were included. There were 70 patients in the treatment group and 32 patients in the control group. All of the vascular density values were similar between the control and treatment groups (p > 0.05 for all). However, the superficial whole thickness, superficial parafoveal thickness, superficial perifoveal thickness, deep whole thickness, deep parafoveal thickness, and deep perifoveal thickness were thinner in the treatment group than the control group (p < 0.05 for all).
conclusionVascular density parameters did not differ between the control and treatment groups. However, the retinal thickness values were lower in the treatment group.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.