Nomogram to predict the axial elongation with orthokeratology: A 6-year follow up study Xiaoxiao Zhang; Jiahao Liang; Weihong Liu; Yicui Weng; Can Chen; Huixin Jiang; Jianhua Li;

A retinal simulation study on the influence of spherical aberration, astigmatism and optotype on the Jackson cross cylinder test Diana Gargallo; Esther García; Sara Perches; Laura Remón; Jorge Ares;

Prevalence of astigmatism among 99,515 children in different areas of Xi'an City, China Ye Zhang; Xiaokang He; Wei Dong; Zihao Wang; Chengfei Liu; Yanying Li; Zhaojiang Du;