[1] Jinan Univ, Dept Ophthalmol, Affiliated Hosp 1, Guangzhou, Guangdong, Peoples R China
[2] Shijiazhuang Aier Eye Hosp, Dept Ophthalmol, Shijiazhuang, Hebei, Peoples R China
[3] Hebei Med Univ, Dept Emergency, Affiliated Hosp 1, Shijiazhuang, Hebei, Peoples R China
[4] Jinzhou Med Univ, Dept Ophthalmol, Affiliated Hosp 3, Jinzhou, Liaoning, Peoples R China