presbyopia lenses meaning in English
远视眼镜，老花眼镜
Examples
- Firstly , various kinds of presbyopia lenses is reviewed and compared . the basic feature and principle of the pal are introduced and the difference between the characteristics of hard design and soft design is described as well
首先，概述和比较不同的老视矫正镜片，介绍渐变镜片的基本结构特征和矫正原理，比较分析软设计和硬设计之间的区别。