作者介绍了导致智能型手机老花眼的三大恶习,并介绍如何去除「智能型手机老花眼」的平日眼睛保健.
Presbyopia: A Marketing Guide for Vision Professionals
If these thoughts appeal to you, this book is for you! Whether your age is 46-ish or 86+, and even if you are only six and just learning to read, this book can be a valuable tool for helping you get past your reading challenges.