国内精品一区二区三区最新_不卡一区二区在线_另类重口100页在线播放_精品中文字幕一区在线

A cataract patient reads after undergoing surgery at a hospital in Xilinhot, Inner Mongolia September 21. Cataracts are a major cause of blindness around the world. In China, nine million people are blind, half of them due to cataracts.

A cataract patient waits to be examined.

(China Daily September 23, 2007)