Articles: PDF OnlyLens implant exchanges for incorrect power: Results of an informal surveySalz, James J. M.D.*; Reader, August L. III M.D.Author Information Department of Ophthalmology, University of Southern California, Los Angeles, California *Reprint requests to James J. Salz, M.D., 8631 West Third Street, Suite 800, Los Angeles, California 90048. Drs. Barnet, Hiles, Hoffer, Morris, and Persak contributed to this survey. Journal of Cataract and Refractive Surgery: March 1988 - Volume 14 - Issue 2 - p 221-224 doi: 10.1016/S0886-3350(88)80101-9 Free Metrics Abstract Despite the introduction of ultrasonic axial length measurements and a variety of intraocular lens implant prediction formulas, postoperative predicted errors greater than 2 diopters occur in approximately 5% to 10% of lens implantations, and occasional errors of 5 diopters to 7 diopters or greater are still encountered. An informal survey revealed successful lens implant exchanges for initial postoperative refractive errors of + 4.37 to -14.00 diopters in eight eyes. © Williams & Wilkins 1988. All Rights Reserved.