Your optic nerve can be thought of as a data cord that is plugged in to each eye and connects them to your brain. The area where the nerve connects to the back of your eye creates a blind spot. There are no receptors in this area at all and if something is in that area, you won’t be able to see it. This experiment locates your blind spot.
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Sure you can draw this out on a piece of paper, but everything needs to be the same size as what’s shown in the video. It is best to print the frog and dot paper, but it doesn’t have to be in color.
If you don’t have a printer is there a way to draw this? Also dose it need to be printed in color?