Comparative study of visual performance of two types of rotationally asymmetric segmental-refractive multifocal intraocular lens 
HUANG Yao, ZHANG Jing-shang, WANG Jin-da, LI Xiao-xia, XIONG Ying, LI Jing, WAN Xiu-hua.
Ophthalmology in China . 2017, (4): 248 -252 .  DOI: 10. 13281/j. cnki. issn.1004-4469. 2017. 04. 008