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A comment on PSA: Back Up Your Shit.

Re:PSA: Back Up Your Shit by mathrawka on Monday January 13, 2014 @08:39PM (#7054827)
Totally off topic, but the I can read the site fine, but if I switch back to white color site (like HN, or just staring at a wall), my eyes still see the lines of the site for awhile.

It physically affects my vision for a few minutes, albeit just a little bit. Is this normal?

[ Parent | on HN ]
Re:PSA: Back Up Your Shit by bluedino on Monday January 13, 2014 @09:33PM (#7055015)
Your eyes have a kind of 'image retention' built in. Some optical illusions make good use of it.
[ Parent | on HN ]