Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Glaucoma: Overview01:25

Glaucoma: Overview

1.5K
Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
1.5K
Photoreceptors and Visual Pathways01:22

Photoreceptors and Visual Pathways

9.6K
At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category,...
9.6K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Effect of the Coronavirus Disease 2019 Pandemic on Retinal Artery Occlusion.

Journal of ophthalmology·2026
Same author

Vogt-Koyanagi-Harada disease recurrence after laser treatment: A case report.

The Journal of international medical research·2026
Same author

Systematic Review of Postvaccination Ocular Adverse Events: A Comprehensive Analysis of Published Reports.

Journal of medical virology·2025
Same author

Relationship Between COVID-19 and Retinal Vein Occlusions.

Journal of ophthalmology·2025
Same author

Predictive factors at initial visit for sunset glow fundus in Vogt-Koyanagi-Harada disease.

Scientific reports·2025
Same author

Early Changes in Ocular Biomarkers in Patients with Vogt-Koyanagi-Harada Disease after Pulse Steroid Therapy.

Ophthalmologica. Journal international d'ophtalmologie. International journal of ophthalmology. Zeitschrift fur Augenheilkunde·2024

Related Experiment Video

Updated: Feb 26, 2026

Fundus Photography as a Convenient Tool to Study Microvascular Responses to Cardiovascular Disease Risk Factors in Epidemiological Studies
10:11

Fundus Photography as a Convenient Tool to Study Microvascular Responses to Cardiovascular Disease Risk Factors in Epidemiological Studies

Published on: October 22, 2014

19.7K

Relationship Between COVID-19 and Retinal Artery Occlusions.

Tetsuya Muto1,2,3, Shigeki Machida1, Shinichiro Imaizumi2

  • 1Department of Ophthalmology, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan, saitama-med.ac.jp.

Journal of Ophthalmology
|February 25, 2026
PubMed
Summary

The link between COVID-19 infection or vaccination and retinal artery occlusions (RAOs) is unclear. While some reports suggest an increase in RAOs post-COVID-19, further research is needed to confirm this association.

Keywords:
branch retinal artery occlusioncentral retinal artery occlusioncoronavirus disease 2019

More Related Videos

A Murine Model of Ischemic Retinal Injury Induced by Transient Bilateral Common Carotid Artery Occlusion
05:20

A Murine Model of Ischemic Retinal Injury Induced by Transient Bilateral Common Carotid Artery Occlusion

Published on: November 12, 2020

8.2K
Optimization of the Retinal Vein Occlusion Mouse Model to Limit Variability
07:23

Optimization of the Retinal Vein Occlusion Mouse Model to Limit Variability

Published on: August 6, 2021

3.3K

Related Experiment Videos

Last Updated: Feb 26, 2026

Fundus Photography as a Convenient Tool to Study Microvascular Responses to Cardiovascular Disease Risk Factors in Epidemiological Studies
10:11

Fundus Photography as a Convenient Tool to Study Microvascular Responses to Cardiovascular Disease Risk Factors in Epidemiological Studies

Published on: October 22, 2014

19.7K
A Murine Model of Ischemic Retinal Injury Induced by Transient Bilateral Common Carotid Artery Occlusion
05:20

A Murine Model of Ischemic Retinal Injury Induced by Transient Bilateral Common Carotid Artery Occlusion

Published on: November 12, 2020

8.2K
Optimization of the Retinal Vein Occlusion Mouse Model to Limit Variability
07:23

Optimization of the Retinal Vein Occlusion Mouse Model to Limit Variability

Published on: August 6, 2021

3.3K

Area of Science:

  • Ophthalmology
  • Infectious Diseases
  • Cardiovascular Medicine

Background:

  • The association between coronavirus disease 2019 (COVID-19) infection or vaccination and retinal artery occlusions (RAOs) is debated.
  • Both COVID-19 and its vaccination have been implicated in thrombin formation, a known cause of RAOs.

Purpose of the Study:

  • To investigate the relationship between COVID-19 infection/vaccination and the occurrence of RAOs.
  • To analyze patient demographics, timing of events, and visual acuity outcomes in RAO cases potentially linked to COVID-19.

Main Methods:

  • Review of existing case reports investigating RAO incidence following COVID-19 infection or vaccination.
  • Analysis of reported average ages, time from diagnosis/vaccination to symptom onset, and visual acuity outcomes.

Main Results:

  • RAOs occurred in patients with a mean age of 48.7 years (central RAO) and 41.3 years (branch RAO) post-infection, and 54.7 years (CRAO) and 62.3 years (BRAO) post-vaccination.
  • Mean time to symptom onset varied from 7.3 days (post-vaccination CRAO) to 48.3 days (post-infection BRAO).
  • Initial and final visual acuities varied, with some data unavailable for branch RAOs.

Conclusions:

  • Current evidence is insufficient to definitively establish a causal link between COVID-19 or its vaccine and RAOs.
  • The possibility of such a relationship cannot be excluded, necessitating further investigation.
  • Understanding this association is crucial given the potential for future pandemics.