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The Plastic Contact Lens Company Chicago, Illinois *Read before the annual meeting of the American Academy of Optometry, Chicago, Illinois, December 9, 1963. For publication in the July, 1964, issue of the American Journal of Optometry and Archives of American Academy of Optometry. †Optometrist. Fellow, American Academy of Optometry.
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George N. Jessen (1964) studied this question.
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