Articles: PDF OnlyCalculating Magnification Differences in Monocular Aphakia*Cohen, Allen† Author Information Division of Optometry, Indiana University, Bloomington, Indiana * Submitted October 25, 1965 † Optometry Student, O.D. AUTHOR'S ADDRESS: Allen Cohen 9677 Basket Ring Rd., Apt. 3 Columbia, Maryland 2104,5 Optometry and Vision Science 53(6):p 294-296, June 1976. Buy Abstract The calculation of magnification differences is treated well in a number of texts,1,3,4,5,7but the formulas are not always presented in their most convenient form. Because of this, many complex schemes have been illustrated2 and many different versions have been published.3,4, 5 The purpose of this paper is to present the pertinent equations in a simplified manner and to illustrate them by a specific example, namely, the case of monocular aphakia. © 1976 American Academy of Optometry