StoryNote logo

What is the brief darkness you see when you open your eyes after rubbing them, what causes it, and why doesn't it happen every time?

by /u/CivilizedPsycho in /r/askscience

Upvotes: 1

Favorite this post:
Mark as read:
Your rating:
Add this post to a custom list

StoryNote©

Reddit is a registered trademark of Reddit, Inc. Use of this trademark on our website does not imply any affiliation with or endorsement by Reddit, Inc.