What are those floaty things in your eye? - Michael Mauser

source: TED-Ed    2014年12月1日
View full lesson: http://ed.ted.com/lessons/what-are-th...
Sometimes, against a uniform, bright background such as a clear sky or a blank computer screen, you might see things floating across your field of vision. What are these moving objects, and how are you seeing them? Michael Mauser explains the visual phenomenon that is floaters.
Lesson by Michael Mauser, animation by Reflective Films.