Authors: Song Lei, Hu Jianmin, Chen Xuelan, Chen Lijuan DOI: 10.3760/cma.j.issn.2095-0160.2019.10.008 Published 2019-10-10 Cite as Chin J Exp Ophthalmol, 2019,37(10): 807-813. Abstract [View PDF] [Read Full Text] Objective To compare cooperation degree and visual acuity difference between Lea Symbols chart and ETDRS chart in Chinese preschool children. Methods A […]