ArticleConstruct validity of a surgical simulator as a valid model for capsulorhexis trainingPrivett, Brian MD; Greenlee, Emily MD; Rogers, Gina MD; Oetting, Thomas A. MS, MD∗ Author Information From the Department of Ophthalmology (Privett, Greenlee, Rogers, Oetting), University of Iowa Hospitals and Clinics, and the Veterans Affairs Medical Center (Greenlee, Oetting), Iowa City, Iowa, USA ∗Corresponding author: Thomas A. Oetting, MS, MD, University of Iowa Hospitals and Clinics, Department of Ophthalmology, 200 Hawkins Drive PFP, Iowa City, Iowa 52242-1091, USA. E-mail: [email protected] Submitted: February 22, 2010. Final revision submitted: May 4, 2010. Accepted: May 7, 2010. SymbolFirst author:Symbol: No Caption available.Brian Privett, MD Department of Ophthalmology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA Journal of Cataract & Refractive Surgery: November 2010 - Volume 36 - Issue 11 - p 1835-1838 doi: 10.1016/j.jcrs.2010.05.020 Buy Metrics Abstract PURPOSE: To compare the performance on the EYESi surgical simulator capsulorhexis training module between medical students and residents and experienced cataract surgeons. SETTING: Department of Ophthalmology, University of Iowa, Iowa City, Iowa, USA. DESIGN: Comparative case series. METHODS: The study comprised medical students and residents at the University of Iowa and experienced cataract surgeons. Neither group had experience with the simulator. Each participant completed 4 trials on the capsulorhexis module. RESULTS: The 7 experienced surgeons achieved statistically significantly better total scores than the 16 medical students and residents on the easy level and the medium level of the capsulorhexis module (P = .004 and P = .000007, respectively). Experienced surgeons achieved significantly better scores in all parameters at the medium level, with better centering (P = .001), less corneal injury (P = .02), fewer spikes (P = .03), less time operating without a red reflex (P = .0005), better roundness of the capsulorhexis (P = .003), and less time completing tasks (P = .008). CONCLUSION: The surgical simulator capsulorhexis module showed significant construct validity (P<.05). Financial Disclosure: No author has a financial or proprietary interest in any material or method mentioned. © 2010 by Lippincott Williams & Wilkins, Inc.
