Impact of Covid-19 on RRD
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This is a retrospective cohort study of surgeries from October 8, 2019, to April 30, 2020. We identified all hospitalized patients with RRD who underwent surgery at Beijing Tongren Eye Center during this period and divided them into the pre-COVID-19 pandemic group and the COVID-19 pandemic group, depending on when they were admitted for surgery. Calendar dates from February 10 to April 30, 2020, were used for the COVID-19pandemic period (the COVID-19 pandemic group) when the top-level response was carried out in Beijing. Calendar dates from October 8 to December 30, 2019, were used for the pre-COVID-19 period (the pre-COVID-19 group). This study was approved by the Ethics Committee of Beijing Tongren Hospital and adhered to the Declaration of Helsinki's tenets. The informed consent was waived. The patient presurgery characteristics were collected, including presurgery wait time, the previous history of eye trauma, age, gender, PPV or SB, presurgery VA, retinal break location, lens status, the combination of pathological myopia (PM), the extent of retinal detachment, concomitant proliferative vitreoretinopathy (PVR), and choroidal detachment (CD). We also collected data on the specific surgical procedures. The outcome of VA and single surgery retinal attachment rate (SSRA) at three months after the surgery were investigated.