A curable condition that causes blindness – Andrew Bastawrous
查看完整課程: http://ed.ted.com/lessons/a-curable-condition-that-causes-blindness-andrew-bastawrous
估計 20 million cases of blindness worldwide are caused by cataracts, a curable condition affecting the lens that focuses images onto the eye’s retina. But how are cataracts formed, and how can we prevent them? Andrew Bastawrous gives the facts on cataracts.
Lesson by Andrew Bastawrous, animation by FOX Animation Domination High-Def.