How accurrate is the center of focus of our eyes? Can they maintain their accurracy after x amount of distance? (Considering the target is within sight and the eye isn't neer/far sighted.)
by 
CDaws
ANSWERS: 1
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The resolution of the human eye is 0.2nm (2 millionths of a mm). This is the same as the practical resolution of an electron microscope (however, the theoretical resolution is 0.002nm). The resolution is the minimum distance that 2 points can be observed as separate, distinct points. This distance will, therefore, be increased the further from the eye the object is therefore, just like pixels on a camera's picture, the focus will become less sharp.
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