Blind Spot Explanation



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Form a triangle using the distance between the optic disc and the fovea as one side. You can see that as the distance between the yellow spot and the retina changes the angle (a) changes. It gets larger as the distance gets shorter.

Consequently, the closer you are to the screen the nearer you need to fixate to the white spot in order to make it disappear.










Blind Spot Demonstration
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