Carolyn D Rider, Janice Kao, Sridharshi C Hewawitharana, Christina M Becker, Amanda Linares, Gail Woodward-Lopez
Validity and Reliability of a Site-Level Assessment Questionnaire to Assess Nutrition and Physical Activity Practices in Schools
Childhood obesity (Print)
uncorrected refractive error one major causes visual impairment children adolescents worldwide covid19 epidemic home isolation considered boost progression childrens myopia geographical conditions high altitude strong sunshine tibetan plateau main residence tibetan population little information available refractive status developmental trajectory therefore article aimed evaluate distribution progression associated factors refractive status secondgrade children lhasa covid19 quarantine students 7 elementary schools completed comprehensive ocular examinations lhasa childhood eye study data regarding cycloplegic refraction corneal biometry parameters including axial length al corneal power anterior chamber depth acd demographic factors analyzed total 1819 students included mean age 79 05 years 961 boys 528 951 tibetan prevalence myopia emmetropia mild hyperopia hyperopia 1094 2402 6080 424 respectively besides average cycloplegic spherical equivalent refraction ser 107 092 diopter covid19 quarantine 059 108d quarantine p 005 growth rate 7 moreover prevalence hyperopia girls significantly higher boys p 0001 nonetheless proportion myopia emmetropia similar p 075 meanwhile children suburban schools significantly lower proportion myopia p 0001 average al acd lens power lp altocorneal radius alcr ratio 2279 078 mm 354 021 mm 2512 148d 293 008 respectively results al acd alcr girls significantly lower boys result lp opposite p 0001 finally multivariate regression analysis revealed ser negatively correlated al lp alcr ratio positively correlated cr acd p 0001 study found covid19 confinement myopia progressed faster lhasa children still significantly lower plain cities china compared shortterm confinement acceleration likely related growth general trend myopia children collectively findings help explore differences ocular growth development among children different ethnic groups