Patients were asked about symptoms of conjunctivitis (current and previous) and they underwent a basic ophthalmological examination at their bedside by two experienced ophthalmologists on a 72-h period. A total of 301 subjects from the COVID admission unit, whose clinical situation allowed us to conduct the aforementioned ophthalmological examination and interview, were systematically explored. To examine the patients, the investigators wore double gloves, a fluid-resistant gown, a full face shield, and both FFP2 and surgical masks.