Cool little video about why they're there and demo's of how to notice them. Also cool explanation of why stuff gets hazy on periphery when staring at object for awhile.
also shows how eye resolution gets worse as it moves from center of focus and that's why when looking at words at edge can't quite make them out.
Why we have blind spots - and how to see the blood vessels inside your own eye! - YouTube:
'via Blog this'
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