EyeWorld Asia-Pacific June 2016 Issue

+VOe 2016 EWAP FEATURE 23 Pentacam ® goes IOL – featuring optical biometry It’s about finding the best IOL! Once again, the Pentacam ® defines the “measure of all things”. The AXL version, featuring integrated optical biometry, makes it a comprehensive, indispensable instrument for cataract surgery. As a full-scale system, the Pentacam ® AXL also provides for safe and swift IOL calculation – even in difficult cases. Visit the APACRS Seminar on Pentacam ® AXL 30 July 2016 at 12:15 pm The OCULUS Pentacam ® AXL Always an Axial Length Ahead OCULUS Asia Ltd. Hong Kong Tel. +852 2987 1050 • Fax +852 2987 1090 www.oculus.de • info@oculus.hk Visit us at APACRS, Bali Booth #1 The Zepto capsulotomy system consists of a disposable handpiece attached to a control console that provides power and suction for the capsulotomy (left). The handpiece terminates in a soft, clear silicone capsulotomy tip that houses a circular collapsible super elastic nitonol ring to perform the capsulotomy (right). Source (all): David F. Chang, MD of this testing were presented at the AAO meeting. Live rabbit studies done by Nick Mamalis, MD , and Liliana Werner, MD , at the Intermountain Ocular Research Center at the Moran Eye Center, University of Utah showed no issues with inflammation or endothelial cell loss. In addition, thermocouple probe measurements confirmed that there is negligible temperature change within the anterior chamber associated with PPC. “The tiny and momentary electrical impulses are on the order of just a few milliseconds,” Dr. Chang said. “In addition, the surrounding silicone suction cup shields the rest of the eye from any heat or energy that might be momentarily generated.” Based on clinical and SEM findings with the femtosecond laser, a major question with any new capsulotomy method is whether the resulting capsular edge resists tearing as well as a manual CCC. Extensive testing of the PPC edge tear strength was performed using paired human cadaver eyes to compare PPC with either femtosecond laser capsulotomy or manual CCC. “We think that such comparisons should be made using paired eyes from the same human donor,” Dr. Chang said. “Comparisons in animal eyes or using eyes from two different human donors are less valid.” The results of these studies performed by Dr. Chang and Vance Thompson, MD’s group in South Dakota revealed unexpected exciting results. “The PPC capsular edge was consistently stronger than either the femtosecond laser or manual capsulotomies,” Dr. Chang noted. “This was true in all 16 pairs of human cadaver eyes—half using femto and half using manual CCC in the fellow paired eye. “I think that most surgeons would welcome the option of an affordable disposable technology to automatically create a perfectly sized and circular capsulotomy that could be used in the usual surgical sequence without interrupting our OR workflow,” Dr. Chang said. “If the resulting capsulotomy was stronger and more tear resistant than a manual CCC, that would be a huge bonus.” A clear central window in the silicone shell would permit patients to fixate on the microscope light filament. Additional advantages would be the ability to center the capsulotomy on the visual axis intraoperatively for a refractive IOL and the ability to use the device following mechanical pupil expansion, he said. The company has received CE mark approval in Europe and has applied for 510K approval in the U.S., Dr. Chang said. Clinical trials will be conducted shortly. EWAP Editors’ note: Dr. Chang has financial interests with Mynosys and Abbott Medical Optics (Abbott Park, Ill.). Contact information Chang: dceye@earthlink.net