ALISO VIEJO, CA -- (Marketwired) -- 01/20/14 -- WaveTec Vision's ORA System is "significantly more accurate" than traditional solutions in predicting intraocular lens (IOL) power selection in challenging eyes with prior refractive surgery, according to a recent peer-reviewed article in the journal Ophthalmology.
WaveTec Vision's ORA System with VerifEye, the leading intraoperative wavefront measurement technology for cataract surgeons, optimizes data during cataract surgery to calculate IOL power. It is the technology of choice for the nation's leading cataract surgeons who use the ORA System to provide critical feedback and guide premium IOL selection.
The study titled, "Intraoperative Refractive Biometry for Predicting Intraocular Lens Power Calculation after Prior Myopic Refractive Surgery," was authored by Tsontcho Ianchulev, MD, MPH; Kenneth J. Hoffer, MD, FACS; Sonia H. Yoo, MD; David F. Chang, MD; Michael Breen, OD; Thomas Padrick, PhD; and Dan B. Tran, MD. is the largest peer-reviewed, published study of intraoperative aberrometry to date. It demonstrates the efficacy of this new technology in one of the most challenging cataract patient populations -- those with prior LASIK procedure where lens power estimation is particularly difficult.
According to Sean Ianchulev, MD MPH, Associate Clinical Professor at UCSF, primary author of the study, "This study provides remarkable validation for the evolution of intraoperative biometry. The ORA System reflects the culmination of a decade-long research effort which has now matured and provides true benefit and superior outcomes to patients and surgeons. I personally cannot imagine refractive cataract surgery without it."
In the study, WaveTec's ORA System was used to obtain aphakic refractive measurements intraoperatively and then to calculate the IOL power. Comparative effectiveness analysis of IOL power determination was done against three conventional clinical practice methods: surgeon best preoperative choice (determined by the surgeon using all available clinical data), the Haigis L, and the Shammas IOL formulas.
In 246 eyes (215 first eyes and 31 second eyes) IRB using ORA achieved the greatest predictive accuracy. Sixty-seven percent of eyes were within +/-0.5 D and 94% of eyes were within +/-1.0 D of the IRB's predicted outcome. This was significantly more accurate than the other preoperative methods. Study participants included patients with a history of myopic LASIK or photorefractive keratectomy who underwent intraoperative refractive biometry (IRB) for IOL power estimation.
"Acknowledgement by the peer-review community is a further reflection of the data and clinical success we are seeing from ORA surgeons worldwide," said Tom Frinzi, WaveTec Vision's President and CEO. "Determining IOL power estimation in challenging eyes with prior LASIK/photorefractive keratectomy is a persistent and growing challenge for surgeons. We're glad to have a solution for them."
About WaveTec Vision
A privately held company, WaveTec Vision is the leader in intraoperative wavefront measurement technology for cataract surgeons, providing on-demand information that increases the precision of cataract surgery so patients achieve their best possible vision. Based in Aliso Viejo, Calif., WaveTec manufactures the proprietary ORA System that delivers optimal cataract surgery results for demanding patients and the skilled surgeons who serve them. For more information, visit www.wavetecvision.com.