This has been on my mind all week, I was reading this book health book, and by that I mean laughing at the reproductive organs, when I came across a Blind Spot test thingy.
If this doesnt work, try agian, move slower, put your right eye directly infront of the X.
With your left eye closed, focus on the X and move your head back and forth slowly until the dot is gone. Dont take your focus off the X
[Blocked Image: http://www.friechamp.net/Jynxmomma/blindspot.gif]
Thanks FrieChamp for giving a cheap boy hosting.
Once you get it working:
It goes blank because it goes over your blind spot, which is where your optic nerve connects to your eye, there are no light receptors there
[Blocked Image: http://www.lionseyebank.net/images/eye-diagram.gif]
Our brains prevent us from having black dots in our view by covering the blind spot with what ever is around it. Pretty neat!
Note : It also works if you focus on the dot with your right eye closed ![]()