Impact Of Covid-19 Home Quarantine On Myopia Prevalence Of 3- To 15-Year-Old Children In Shanghai
Published 2023 - 41st Congress of the ESCRS
Reference: OR01.02 | Type: Free paper | DOI: 10.82333/hdeq-bf66
Authors: Danjuan Yang* 1 , Meiyan LI 1 , Weiming YANG 2 , Ruoyan WEI 1 , Xiaomei QU 1 , Xiaoying WANG 1 , Xiaolei LIN 3 , Yongfu YU 3 , Xingtao ZHOU 1
1Eye & ENT Hospital, Fudan University,shanghai,China, 2Children’s Hospital of Fudan University,shanghai,China, 3Fudan University,shanghai,China
Purpose
To compare the changes in myopic status before, during and after coronavirus disease 2019 (COVID-19) home quarantine in children of 3 to 15 years old.
Setting
Eye and ENT Hospital, Fudan University
Methods
A cross-sectional comparative study. The medical record and refractive parameters from 286,497 children aged between 3 to 15 years old before, during and after COVID-19 home quarantine periods were included for analysis. The pre-COVID-19 home quarantine period was set from 1st January 2018 to 31st January 2020 and the peri-quarantine period was defined as 1st February 2020 to 31st August 2020. The post-quarantine period was from 1st September 2020 to 31st April 2021. All enrolled subjects received subjective refraction in the cycloplegic state as the reference. Main Outcome Measures: The primary outcome was the prevalence of myopia (spherical equivalent≤ -0.50 D). The secondary outcome was the change of spherical equivalent.
Results
The overall prevalence of myopia increased from 62.54% (110392/176508) before home quarantine to 68.33% (33704/49322) in the COVID-19 quarantine period and remained 65.61% (39805/60667) after the lockdown. Compared to the pre-covid period, COVID-19 quarantine increased both the prevalence of myopia (peri- vs pre-covid, OR=1.718, peri- vs post-covid, OR=1.896) and myopia severity (peri- vs pre-covid, OR=1.801, peri- vs post-covid, OR=1.160). The SE of enrolled subjects dropped by -0.200D (peri vs. pre; 95%CI: -0.225~-0.175D, P<0.001) during the home quarantine. The highest age-specific myopia prevalence witnessed a forward shift from schoolchildren of 9-year-old (14.26%) to 8-year-old during (15.13%) and after (17.42%) COVID-19 lockdown.
Conclusions
The prevalence of myopia increased during the COVID-19 home quarantine period among children. Myopic shift and a forward shift of age-specific myopia prevalence were witnessed during the lockdown.