title: Reply.
authors.affiliation: *Department of Ophthalmology, Changhua Christian Hospital, Changhua City 500, Taiwan †College of Medicine, Kaohsiung Medical University, Kaohsiung, 807, Taiwan ‡Department of Ophthalmology, National Taiwan University Hospital, Zhongzheng Dist., Taipei City 100, Taiwan §National Taiwan University, College of Medicine, Taipei 100, Taiwan.
authors.forename: San-Ni
authors.initials: SN
authors.lastname: Chen
authors.forename: Chung-May
authors.initials: CM
authors.lastname: Yang