Multiple Evanescent White Dot Syndrome Following COVID-19 mRNA Vaccination

Purpose To report two cases of multiple evanescent white dot syndrome (MEWDS) following COVID-19 vaccination with the BNT162b2 mRNA vaccine. Methods Two case reports. Case-1: A 40-yo Caucasian male, complained of blurred and decrease of vision in his left eye (OS) one week after the first dose of the BNT162b2 mRNA SARS-CoV-2 vaccine. Funduscopic examination OS showed multiple granular white dots with an aspect of foveal granularity. Case-2: A 23-yo woman also presented with defective and decrease of vision OS. She received her first dose of the BNT162b2 mRNA SARS-CoV-2 vaccine ten days before. Dilated fundus examination OS showed altered macular reflex with an aspect of foveal granularity. Results Multimodal imaging showed features of MEWDS in both cases. The anomalies found resolved spontaneously after 6 weeks. Conclusion Inflammation and immune dysregulation induced by COVID-19 mRNA vaccine or its adjuvants could be involved in ocular adverse effects.