1. Temporary guidelines. Prevention, diagnosis and treatment of new coronavirus infection (COVID-19) Version 12 (21.09.2021) (Electronic resource). Access date: 21.09.2021 (In Russ.). https://static-0.minzdrav.gov.ru/system/attachments/attaches/000/058/075/original/%D0%92%D0%9C%D0%A0_COVID-19_V12.pdf
2. Doherty MJ. Ocular manifestations of feline infectious peritonitis. J Am Vet Med Assoc. 1971;159(4):417-424
3. Retinal findings in patients with COVID-19
4. The eye status in patients after new coronavirus infection
5. Providing eye care during the COVID-19 pandemic