ArticleBiomedicines2021
Persistent Retinal Microvascular Impairment in COVID-19 Bilateral Pneumonia at 6-Months Follow-Up 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 21 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
21 citing papers in PubMed, 31 citations in OpenAlex.
- Subclinical neurovascular and immune correlates of post-COVID-19 syndrome detected by retinal imaging.Brain, behavior, & immunity - health · 2026Article
- Long-term retinal dysfunction following COVID-19 infection: a one-year prospective observational study.BMC ophthalmology · 2026Observational
- Long COVID Mechanisms, Microvascular Effects, and Evaluation Based on Incidence.Life (Basel, Switzerland) · 2025Review
- COVID-19's effects on microvascular structure in a healthy retina: an OCTA study.International journal of ophthalmology · 2025Article
- 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
- The neurovascular retinal involvement in a large population of patients recovered from COVID-19: an OCT and OCT angiography study.Eye (London, England) · 2024Observational
- New findings on retinal microvascular changes in patients with primary COVID-19 infection: a longitudinal study.Frontiers in immunology · 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
- Assessment of early and long-COVID related retinal neurodegeneration with optical coherence tomography.International ophthalmology · 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
- The impact of acute COVID-19 on the retinal microvasculature assessed with multimodal imaging.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2023Article
- Retinal tissue and microvasculature loss in COVID-19 infection.Scientific reports · 2023Article
- Long-Term Effect of SARS-CoV-2 Infection on the Retinal and Choroidal Microvasculature.Journal of clinical medicine · 2023Article
- The Comparison of Retinal Microvascular Findings in Acute COVID-19 and 1-Year after Hospital Discharge Assessed with Multimodal Imaging-A Prospective Longitudinal Cohort Study.International journal of molecular sciences · 2023Article
- Long COVID: The latest manifestations, mechanisms, and potential therapeutic interventions.MedComm · 2022Review
- Ocular sequelae in severe COVID-19 recovered patients of second wave.Indian journal of ophthalmology · 2022Observational
- Macular vessel density reduction in patients recovered from COVID-19: a longitudinal optical coherence tomography angiography study.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2022Observational
- Sustained Impairment in Cardiopulmonary Exercise Capacity Testing in Patients after COVID-19: A Single Center Experience.Canadian respiratory journal · 2022Article
Corrections and comments
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Authors and funding
10 authors at 2 institutions in 1 country.
Funding
Abstract
The purpose of this study was to evaluate the long-term evolution of retinal changes in COVID-19 patients with bilateral pneumonia. A total of 17 COVID-19 patients underwent retinal imaging 6 months after hospital discharge with structural optical coherence tomography (OCT) and optical coherence tomography angiography (OCTA). The parafoveal retinal nerve fiber layer (RNFL) and ganglion cell layer (GCL) were significantly thinner in COVID-19 patients at 6 months compared to 0 months (
Indexed as
Identifiers
What OpenQuestion holds
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.