Changes in Refractive State After the Age of Forty-Five

School of Optometry, University of California Berkeley, California *This paper is one part of the first Thomas H. Peters Memorial Lecture delivered at the University of California, Berkeley, California, October 19, 1957. This lecture-ship, the first of its kind in optometry, is to be awarded annually, the lecture to be delivered at the University of California. The lectureship is in memory of Thomas H. Peters, O.D., past president of the California Optometric Association who, more than any other individual, made possible the School of Optometry building on the Berkeley campus. The lecture as originally delivered was a discussion of refraction in general with special emphasis on the changes occurring in later life. The present published paper, which was delivered at the annual meeting of the American Academy of Optometry, Chicago, December 10, 1957, is the experimental data, the conclusions pertaining to geriatric optometry only. The remaining parts on refraction in general will be published in another form. For publication in the May, 1958, issue of the American Journal of Optometry and Archives of American Academy of Optometry. †Optometrist. Ph.D., Fellow, American Academy of Optometry.