Possible COVID-19 MRNA Vaccine-Induced Case of Unilateral Central Retinal Vein Occlusion.

PURPOSE: To report a case of a patient with central retinal vein occlusion (CRVO), 2 weeks after the first dose of a COVID-19 mRNA vaccine. RESULTS: A 35-year-old man presented with decreased vision on his right eye, 2 weeks after receiving the first dose of COVID-19 mRNA vaccine. During examination, signs of right CRVO were found. We started general checkup of the patient, extended with laboratory tests specific for VIPIT. No exact cause of the thromboembolic episode could be documented. With the applied therapy, symptoms resolved completely. CONCLUSION: CRVO after COVID-19 mRNA vaccination is reported only in one case in the literature. In our case, the young age of the patient, the close onset of the symptoms to the vaccination and the negative systemic, immunologic and hematologic tests are suggesting a vaccine-induced thrombotic mechanism. We propose further investigation of vaccine-induced thrombotic mechanisms and also close follow of the reported cases.