Coronavirus disease 2019 (COVID-19)
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
2019-20 coronavirus outbreak
Vitrectomy
Medicine
Aerosol
Ophthalmology
Pandemic
Betacoronavirus
Coronavirus Infections
Environmental science
Virology
Meteorology
Geography
Internal medicine
Outbreak
Infectious disease (medical specialty)
Visual acuity
Disease
