ArticleBiomedicines2021
Retinal Microvascular Impairment in COVID-19 Bilateral Pneumonia Assessed by Optical Coherence Tomography Angiography.
Article in Biomedicines, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 2 of them syntheses that pooled it.
What it found
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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
35 citing papers in PubMed, 2 syntheses or guidelines pooled it, 66 citations in OpenAlex.
- Retinal microvascular impairment in COVID-19 patients: A meta-analysis.Immunity, inflammation and disease · 2022Pooled it
- 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
- Persistent Redox Imbalance in Post-COVID-19 Syndrome: Lipid Peroxidation, Antioxidant Enzyme Depletion, and Reduced Nitric Oxide Availability in an Amazonian Population.Antioxidants (Basel, Switzerland) · 2026Article
- Task-Evoked Pupillary Dynamics Are Altered in Post-COVID Syndrome.Medical sciences (Basel, Switzerland) · 2026Article
- Long-term retinal dysfunction following COVID-19 infection: a one-year prospective observational study.BMC ophthalmology · 2026Observational
- Could persistent extravascular fibrin deposition link microvascular and interstitial pathology in long COVID?Frontiers in medicine · 2026Article
- Long-term retinal oximetry and OCT angiography in patients recovered from COVID-19.Scientific reports · 2025Article
- Long COVID Mechanisms, Microvascular Effects, and Evaluation Based on Incidence.Life (Basel, Switzerland) · 2025Review
- Long-Term Effects of COVID-19 on Optic Disc and Retinal Microvasculature Assessed by Optical Coherence Tomography Angiography.Diagnostics (Basel, Switzerland) · 2025Article
- COVID-19's effects on microvascular structure in a healthy retina: an OCTA study.International journal of ophthalmology · 2025Article
- Article
- Retinal Microvasculature Changes Linked to Executive Function Impairment after COVID-19.Journal of clinical medicine · 2024Article
- A Blood Supply Pathophysiological Microcirculatory Mechanism for Long COVID.Life (Basel, Switzerland) · 2024Article
- Optic nerve head alterations after COVID-19: an optical coherence tomography angiography-based longitudinal study.The Journal of international medical research · 2024Observational
- New findings on retinal microvascular changes in patients with primary COVID-19 infection: a longitudinal study.Frontiers in immunology · 2024Article
- The prone position in COVID-19 impacts the thickness of peripapillary retinal nerve fiber layers and macular ganglion cell layers.PloS one · 2024Article
- Retinal Microvasculature Image Analysis Using Optical Coherence Tomography Angiography in Patients with Post-COVID-19 Syndrome.Journal of imaging · 2023Article
- Comprehensive Assessment of Eyes in Kidney Transplant Recipients after Recovering from COVID-19.Life (Basel, Switzerland) · 2023Article
- Reduced Vessel Density and Enlarged Foveal Avascular Zone in the Macula as a Result of Systemic Hypoxia Caused by SARS-CoV-2 Infection.Journal of personalized medicine · 2023Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The purpose of this study was to evaluate the presence of retinal and microvascular alterations in COVID-19 patients with bilateral pneumonia due to SARS-COV-2 that required hospital admission and compare this with a cohort of age- and sex-matched controls. COVID-19 bilateral pneumonia patients underwent retinal imaging 14 days after hospital discharge with structural optical coherence tomography (OCT) and optical coherence tomography angiography (OCTA) measurements. Vessel density (VD) and foveal avascular zone (FAZ) area were evaluated in the superficial, deep capillary plexus (SCP, DCP), and choriocapillaris (CC). After exclusion criteria, only one eye per patient was selected, and 50 eyes (25 patients and 25 controls) were included in the analysis. COVID-19 patients presented significantly thinner ganglion cell layer (GCL) (
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Registered trials
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.