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I'm pretty sure this doesn't exist. If it did, that would be awesome. The following is 100% pure speculation with nothing to back this up at all (as a disclaimer). Phosphorus-31 (the stable isotope) is NMR active, which means that you could theoretically use an MRI machine to visualize phosphorus. A quick google search shows scientists attempting to use ...


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The optic nerve fibers cross inside the optic chiasm sharing the same shell: The crossing fibers go ones between others, like on this classical picture -


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According to an article in Vision Research Volume 50 issue 2 : "The face’s vertical distance between the eyes and the mouth is approximately 36% of its length, and the horizontal distance between the eyes is approximately 46% of the face’s width." The article can be found at: http://www.sciencedirect.com/science/article/pii/S0042698909005045


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Let us say this myopic patient has amplitude of accommodation of 8D. The patient accommodates 8D beyond far point, thus his near point is 1/6+8=0.07m (7.1cm). If we compare the case with emmetropic eye with accommodation amplitude of 8D, the near point is 1/8=0.12m (12cm). So, yes, near point of myopic person is different from an emmetropic one. But, you ...



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