Long-term and rare adverse effects of COVID-19 vaccines are unknown. Hence, it is important to report them to improve the safety profile of the vaccines and enhance their use worldwide. Here, we describes a case of acute visual impairment after Pfizer-BioNTech vaccine second dose. 

中文翻译：

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辉瑞-BioNTech COVID-19 疫苗第 2 次接种后视力和视野急剧下降：病例报告

COVID-19 疫苗的长期和罕见的副作用尚不清楚。因此，重要的是报告它们以改善疫苗的安全性并增强其在全球的使用。在这里，我们描述了辉瑞 BioNTech 疫苗第二剂后出现急性视力障碍的案例。