Clinical evaluation of automated refraction in anterior chamber pseudophakia

Abstract

Automated refraction with the Canon RK-1 Autoref keratometer was evaluated in 85 eyes of 85 patients with an anterior chamber intraocular lens implant and a best corrected visual acuity of at least 6/12. Autorefraction readings were obtained in 80 (94%) of these eyes. The agreement between autorefraction and clinical refraction data was 89% for spherical equivalence <0-51 dioptres (D), 91% for sphere power <051 D, 82% for cylinder power <0-51 D, and 91% for cylinder axis <11°. Autorefraction provides acceptably accurate postoperative refraction values in anterior chamber pseudophakia.