title: Reply.
authors.affiliation: Beijing, China; and Stanford, California.
authors.forename: Xiaochen
authors.initials: X
authors.lastname: Ma
authors.affiliation: Guangzhou, China; New York, New York; and Belfast, United Kingdom.
authors.forename: Nathan
authors.initials: N
authors.lastname: Congdon
authors.affiliation: Beijing, China.
authors.forename: Hongmei
authors.initials: H
authors.lastname: Yi
authors.affiliation: Beijing, China.
authors.forename: Xiaopeng
authors.initials: X
authors.lastname: Pang
authors.affiliation: Guangzhou, China.
authors.forename: Zhongqiang
authors.initials: Z
authors.lastname: Zhou
authors.affiliation: Guangzhou, China.
authors.forename: Mirjam E
authors.initials: ME
authors.lastname: Meltzer
authors.affiliation: Guangzhou, China.
authors.forename: Mingguang
authors.initials: M
authors.lastname: He
authors.affiliation: Guangzhou, China.
authors.forename: Liu
authors.initials: L
authors.lastname: Yizhi
authors.affiliation: Xi'an, China.
authors.forename: Yaojiang
authors.initials: Y
authors.lastname: Shi
authors.affiliation: Stanford, California.
authors.forename: Scott
authors.initials: S
authors.lastname: Rozelle
mesh_terms: D005139:Eyeglasses / Q000592:standards*; D005260:Female; D006801:Humans; D008297:Male; D012029:Refraction, Ocular; D012030:Refractive Errors / Q000628:therapy*; D014792:Visual Acuity; D019987:Persons with Visual Disabilities / Q000534:rehabilitation*