Feasibility Research of Determined Oxygen Permeability of Finished Soft Contact Lens

VernacularTitle:软性接触镜成品片透氧系数测试的可行性研究
Author: Yan WEN ¹ ; Jian ZHENG ; Hongping FANG ; Xiaohang JIA ; Tao HE ; Weiming QI
Author Information

1. 国家食品药品监督管理局杭州医疗器械质量监督检验中心
Keywords: soft contact lens; oxygen permeabilities(Dk); polarographic method
From: Chinese Journal of Medical Instrumentation 2015;(2):136-138
CountryChina
Language:Chinese
Abstract: Objective A method for determined oxygen permeability(Dk) of finished soft contact lens. Methods Oxygen permeability(Dk) of 10 group finished soft contact lens was determined by polarographic method, and the values were linearly calibrated using the measured and established Dk values of the specified reference materials. Results Only one Dk value fel outside of the requirement of GB 11417.3—2012 tolerance for Dk(±20%). Conclusion It is great practicability when determined the oxygen permeability(Dk) of finished soft contact lens by polarographic method which were linearly calibrated using the measured and established Dk values of the specified equal thickness reference materials. without the measured lens customized 4 different thickness.