Sources of medical error in refractive surgery.

Purpose: To evaluate the causes of laser programming errors in refractive surgery and outcomes in these cases.

Methods: In this multicenter, retrospective chart review, 22 eyes of 18 patients who had incorrect data entered into the refractive laser computer system at the time of treatment were evaluated. Cases were analyzed to uncover the etiology of these errors, patient follow-up treatments, and final outcomes.

Effect of iris registration on outcomes of LASIK for myopia with the VISX CustomVue platform.

Purpose: To compare visual outcomes after LASIK using the VISX STAR S4 CustomVue, with and without Iris Registration technology.

Methods: In this retrospective study, LASIK was performed on 239 myopic eyes, with or without astigmatism, of 142 patients. Iris registration LASIK was performed on 121 eyes and non-iris registration LASIK was performed on 118 eyes.

Correlation of visual outcome and patient satisfaction with preoperative keratometry after hyperopic laser in situ keratomileusis.

Purpose: To prospectively study the dependence of visual outcomes and patient satisfaction on corneal keratometry (K) in hyperopic laser in situ keratomileusis (LASIK).

Setting: John A. Moran Eye Center, Department of Ophthalmology and Visual Sciences, University of Utah, Salt Lake City, Utah, USA.