COVID-19 vaccination and retinal vascular occlusion: still open for debate?

Alan Y Hsu^#¹, Chia-Yun Chen^#¹, Chun-Ju Lin^{2

3

4}, Ning-Yi Hsia^{1

5

6}, Yi-Ching Shao^{1

5

7}, Yi-Yu Tsai^{1

5

6}

Affiliations

¹ Department of Ophthalmology, China Medical University Hospital, China Medical University, Taichung, Taiwan.
² Department of Ophthalmology, China Medical University Hospital, China Medical University, Taichung, Taiwan. doctoraga@gmail.com.
³ School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan. doctoraga@gmail.com.
⁴ Department of Optometry, Asia University, Taichung, Taiwan. doctoraga@gmail.com.
⁵ School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan.
⁶ Department of Optometry, Asia University, Taichung, Taiwan.
⁷ Graduate Institute of Biomedical Sciences, College of Medicine, China Medical University, Taichung, Taiwan.

^# Contributed equally.

Alan Y Hsu et al. Eye (Lond). 2026.

. 2026 Jan 23.

doi: 10.1038/s41433-026-04256-z. Online ahead of print.

Alan Y Hsu^#¹, Chia-Yun Chen^#¹, Chun-Ju Lin^{2

3

4}, Ning-Yi Hsia^{1

5

6}, Yi-Ching Shao^{1

5

7}, Yi-Yu Tsai^{1

5

6}

¹ Department of Ophthalmology, China Medical University Hospital, China Medical University, Taichung, Taiwan.
² Department of Ophthalmology, China Medical University Hospital, China Medical University, Taichung, Taiwan. doctoraga@gmail.com.
³ School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan. doctoraga@gmail.com.
⁴ Department of Optometry, Asia University, Taichung, Taiwan. doctoraga@gmail.com.
⁵ School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan.
⁶ Department of Optometry, Asia University, Taichung, Taiwan.
⁷ Graduate Institute of Biomedical Sciences, College of Medicine, China Medical University, Taichung, Taiwan.

^# Contributed equally.

No abstract available

Conflict of interest statement

Comprting interests: The authors declare no competing interests.

1. Azar AE, Shukla P, Allan KC, Singh RP, Talcott KE. Ophthalmic complications associated with COVID-19: a large US national database analysis. Eye. 2025;39:3148–54. - DOI - PubMed - PMC
1. Hsia NY, Hsu AY, Wang YH, Li JX, Chen HS, Wei JC, et al. The risk assessment of uveitis after COVID-19 diagnosis: A multicenter population-based study. J Med Virol. 2023;95:e29188. - DOI - PubMed
1. Li J-X, Wang Y-H, Bair H, Hsu S-B, Chen C, Wei JC-C, et al. Risk assessment of retinal vascular occlusion after COVID-19 vaccination. npj Vaccines. 2023;8:64. - DOI - PubMed - PMC
1. Li J-X, Wei JC-C, Wang Y-H, Bair H, Hsu S-B, Lin C-J. Retinal vascular occlusion and COVID-19 diagnosis: a multicenter population-based study. Retina. 2024;44:345–52. - DOI - PubMed