COVID-19, Vaccines, and Retinal Vascular Disease - Summary - MDSpire

COVID-19, Vaccines, and Retinal Vascular Disease

  • By

  • Nirojini Sivachandran, MD, PhD, FRCSC

  • May 14, 2026

  • 2 min

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Objective:

To investigate the associations between COVID-19 infection, vaccination, and retinal vascular events.

Key Findings:
  • Retinal artery occlusion is more common after COVID-19 infection.
  • Retinal vein occlusion is more common after COVID-19 vaccination.
  • The mRNA vaccine platform is associated with a higher rate of ocular adverse events compared to other vaccine types.
  • Pooled relative risk for retinal vein occlusion was found to be 2.4, but results were statistically inconclusive due to study heterogeneity.
Interpretation:

The findings suggest a need for retina physicians to consider retinal vascular occlusions and related conditions in patients with COVID-19 infection or vaccination.

Limitations:
  • Wide confidence intervals and study heterogeneity limit the conclusiveness of the findings.
  • Potential biases in the included studies may affect the results.
Conclusion:

There is a critical need for ongoing vaccine surveillance and a broader differential diagnosis for retinal conditions associated with COVID-19.

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