Abstract
IT is a well-known fact that while our vision is binocular, one eye (more often the right than the left) is in fact preferred or dominant in fixation and sighting. Much has been published on this subject, especially in its relation to handedness. We conjectured that if one eye is dominant in sighting, the other, that is, the non-dominant eye, would logically be expected to close more easily in order to enhance the use of the dominant eye, and as a corollary, the dominant eye would be more resistant to closure unilaterally because of the very nature of its dominance. In putting this theory to test, we used the students of our senior and junior anatomy classes (total 145, ranging from 18 to 24) as subjects. Eye dominance was first ascertained by three or more trials of the cone test in each case, and then the subjects were asked to close the right and left eyes singly and alternately for a number of times and to say which eye they found could close with less effort. This latter test was subjective; in some cases, however, we were able to see quite plainly for ourselves. The results of our investigation are given in Table 1.
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CHAN, S., CHANG, K. Relation of Eye Dominance and Eye Closure. Nature 185, 539 (1960). https://doi.org/10.1038/185539a0
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DOI: https://doi.org/10.1038/185539a0
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