To the Editor.
—In the April 1989 issue of the Archives, Arrowsmith and Marks1 concluded in their article on radial keratotomy that "Overall, these results indicate RK [radial keratotomy] to be safe and effective through 5 years after surgery for the vast majority of patients in this series." They indicate that after 5 years 26.8% of eyes operated on have hyperopia greater than 1 diopter and 6.5% have myopia greater than 2 D. This seems to me to be a failure rate of 33.3%, with 26.8% of patients (those with hyperopia) being distinctly worse off after surgery. I do not consider 66.6% to be a "vast" majority.Effectiveness is in the eyes of the beholder and apparently in only two thirds of the eyes of these patients.
Brown JA. Effectiveness of Radial Keratotomy. Arch Ophthalmol. 1989;107(10):1419. doi:10.1001/archopht.1989.01070020493004
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