Your guide is Tom Stafford:
This is a picture of the back of my eye, you can see the blood vessels and the optic disc, the light circle where they converge. It is this disc which produces the blind spots in our vision.
You will need: pen, paper, eyes
Your journey will take: minutes
Category: perception
Trig points: 3
The Treasure:
Proud of your sharp sight? Perhaps you should think again. For each eye, there is a blind spot, an area near the middle of your vision for which you cannot see anything. Normally the way your vision works hides these blind spots from your awareness, but it isn't hard to show they're there. Visual blind spots are a good example of how our conscious experience
