ArticleCanadian journal of ophthalmology. Journal canadien d'ophtalmologie2021
Optical coherence tomography angiography findings in patients with COVID-19.
Article in Canadian journal of ophthalmology. Journal canadien d'ophtalmologie, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 1 of them a synthesis that pooled it.
What it found
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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
39 citing papers in PubMed, 1 synthesis or guideline pooled it, 71 citations in OpenAlex.
- COVID-19-Related Retinal Micro-vasculopathy - A Review of Current Evidence.American journal of ophthalmology · 2022Pooled it
- Subclinical neurovascular and immune correlates of post-COVID-19 syndrome detected by retinal imaging.Brain, behavior, & immunity - health · 2026Article
- Viral mechanisms, tropism, and clinical relevance regarding the ophthalmic manifestations of SARS-CoV-2 infection.International journal of ophthalmology · 2026Review
- Long-Term Effects of COVID-19 on Optic Disc and Retinal Microvasculature Assessed by Optical Coherence Tomography Angiography.Diagnostics (Basel, Switzerland) · 2025Article
- Spectrum of retinal microvascular ischemia in patients with COVID-19 based on multimodal imaging.Heliyon · 2024Article
- Bilateral acute macular neuroretinopathy associated with COVID-19 infection presenting with central scotoma.American journal of ophthalmology case reports · 2024Article
- Impaired retinal oxygen metabolism and perfusion are accompanied by plasma protein and lipid alterations in recovered COVID-19 patients.Scientific reports · 2024Article
- New findings on retinal microvascular changes in patients with primary COVID-19 infection: a longitudinal study.Frontiers in immunology · 2024Article
- Outer Retinopathies Associated with COVID-19 Infection: Case Reports and Review of Literature.Case reports in ophthalmological medicine · 2024Article
- COVID-19-related retinal microvasculopathy and systemic implications in patients with severe disease: results from the Methuselah study.Frontiers in medicine · 2024Article
- The prone position in COVID-19 impacts the thickness of peripapillary retinal nerve fiber layers and macular ganglion cell layers.PloS one · 2024Article
- Macular perfusion changes in people administered two types of COVID-19 vaccines: optical coherence tomography angiography study.Arquivos brasileiros de oftalmologia · 2024Article
- Retinal Microvasculature Image Analysis Using Optical Coherence Tomography Angiography in Patients with Post-COVID-19 Syndrome.Journal of imaging · 2023Article
- Retinal vascular occlusion risks during the COVID-19 pandemic and after SARS-CoV-2 infection.Scientific reports · 2023Article
- Assessment of early and long-COVID related retinal neurodegeneration with optical coherence tomography.International ophthalmology · 2023Article
- Analysis of Optical Coherence Tomography (OCT) and Optical Coherence Tomography Angiography (OCTA) Parameters in Young Adults after SARS-CoV-2 Infection (COVID-19) Compared with Healthy Young Controls.Diagnostics (Basel, Switzerland) · 2023Article
- Choroidal and Retinal Vascular Findings in Patients with COVID-19 Complicated with Pneumonia: Widefield Imaging.Diagnostics (Basel, Switzerland) · 2023Article
- Visual perception alterations in COVID-19: a preliminary study.International journal of ophthalmology · 2023Article
- Optical Coherence Tomography Angiography Parameters of the Retina in SARS-CoV-2 Recovered Subjects.Cureus · 2023Article
- The Impact of COVID-19 Infection on Macular Capillary Perfusion.Beyoglu eye journal · 2023Article
Corrections and comments
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Authors and funding
5 authors at 1 institution in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo examine the changes in choriocapillaris and retina caused by coronavirus disease 2019 (COVID-19) by comparing optical coherence tomography angiography (OCTA) findings of COVID-19 patients and healthy controls.
methodsThe study and control groups consisted of 54 eyes of 27 participants, each. Patients and controls underwent OCTA examination. Foveal zone vessel density and parafoveal zone vessel density (for 4 quadrants: nasal, temporal, superior, inferior) were calculated for both superficial and deep capillary plexuses. Additionally, choriocapillaris flow and foveal avascular zone areas were calculated.
resultsFor the parafoveal area in the study group, vessel density was significantly lower in the superior and nasal quadrants of the superficial capillary plexus and in all quadrants of the deep capillary plexus compared with controls (p < 0.05 for all). The study group had significantly higher choriocapillaris flow area values compared with controls (p = 0.042).
conclusionReduced vessel density of the retinal capillary plexus was detected in COVID-19 patients who may be at risk for retinal vascular complications.
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