Orthokeratology lens (OK lens) is one of the effective tools for myopia correction in adolescents. Currently, the OK lens is maintained by surface treatment of the atmospheric argon plasma jet for wearing comfort, sterilization and cleaning. In order to increase the concentration of reactive species and the convenience of plasma device, an atmospheric pulsed microwave air plasma jet is developed and used to treat the OK lens. The electrical and optical characteristics of the microwave air plasma jet are evaluated by the discharge images, optical emission spectrum (OES), gas temperature and electron density, while the surface physical and chemical characteristics of OK lens are studied by the surface wettability, scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FTIR). The results indicate that the surface wettability of OK lens increases after plasma treatment, while no significant changes in surface morphology are observed. The increase of oxygen-containing groups, decrease of fluorine-containing groups and formation of silicates on the lens surface are the main reasons for the enhancement of hydrophilicity. Surface treatment by pulsed microwave air plasma jet is a promising method for OK lens care, which provids a technical approach for portable lens care devices.

中文翻译：

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角膜塑形镜护理：通过大气脉冲微波空气等离子射流进行表面处理


角膜塑形镜（OK lens）是青少年矫正近视的有效工具之一。目前，OK 镜片通过常压氩等离子射流的表面处理来保持佩戴舒适度、消毒和清洁。为了提高反应性物质的浓度和等离子体装置的便利性，开发了一种常压脉冲微波空气等离子体射流，用于处理 OK 透镜。通过放电图像、发射光谱 （OES）、气体温度和电子密度评价微波空气等离子体射流的电学和光学特性，而通过表面润湿性、扫描电子显微镜 （SEM）、X 射线光电子能谱 （XPS） 和傅里叶变换红外光谱 （FTIR） 研究 OK 透镜的表面物理和化学特性。结果表明，等离子体处理后 OK 透镜的表面润湿性增加，而表面形貌未观察到显着变化。含氧基团的增加、含氟基团的减少和晶状体表面硅酸盐的形成是亲水性增强的主要原因。通过脉冲微波空气等离子射流进行表面处理是 OK 镜片护理的一种很有前途的方法，它为便携式镜片护理设备提供了一种技术方法。