Eyeworld

119 February 2015 EW MEETING REPORTER MMC/interferon may also be used in treatment. Editors' note: Dr. Wu has financial in- terests with IOP Ophthalmics (acquired by Katena, Denville, N.J.) and Allergan. The evolution of endothelial keratoplasty and use in complicated cases Nicoletta Fynn-Thompson, MD, Boston, gave attendees an update on endothelial keratoplasty (EK). It is indicated for treatment of cor- neal endothelial dysfunction, she said. The benefits of EK compared to penetrating keratoplasty (PK) include a faster recovery, more stable and predictable surface topography, minimal change in corneal topog- raphy, and relatively predictive refractive shift, she said. Advantag- es of EK include a reduced risk of globe rupture, lower rejection rate, far fewer sutures, and less potential complications. Dr. Fynn-Thompson also men- tioned the types of EK that have emerged over the years, including DSEK (Descemet's stripping endothe- lial keratoplasty), ultra thin DSEK, DMAEK (Descemet's membrane automated endothelial keratoplas- ty), DMEK (Descemet's membrane endothelial keratoplasty), and PDEK (pre-Descemet's endothelial kerato- plasty). DSEK is still the most widely performed variation of EK, she said. With EK, there are some eyes that can be challenging to handle, and Dr. Fynn-Thompson stressed that eyes with hemorrhage/bleed- ing or eyes with previous glaucoma surgery may require special atten- tion. For patients with an increased risk of hemorrhage, make sure you review preoperative charts, she said. Minimize the damage to the iris root, and minimize disruption of the conjunctiva. Aim to keep the eye pressurized, she said, because soft eyes will bleed more. Additionally, she said to not disrupt the clot if not necessary. For patients undergoing EK with previous glaucoma surgery, Dr. Fynn-Thompson said that glaucoma has the greatest risk for graft failure. Managing the air bubble can be challenging in these cases. Proper placement of the graft may also be difficult at times, and previous surgery and scar tissue may dictate the location of the wound and tissue delivery system you use, she said. EK continues to evolve, Dr. Fynn-Thompson said. Better tech- niques will provide better outcomes, which will allow for more complex cases with other co-morbidities to be addressed. Adapting to the challeng- es of each case will provide the best possibility for long-term endothelial graft survival, she said. Editors' note: Dr. Fynn-Thompson has no related financial interests. Using intraoperative aberrometry to improve prediction error Stephen Brint, MD, Metairie, La., gave a talk titled "Retrospective Analysis of Prediction Error of IOL Calculation in a Large Population of Post-Myopic LASIK Patients Under- going Cataract Surgery." IOL power calculation has traditionally been challenging in post-refractive surgery eyes, Dr. Brint said. He discussed a large population study that evaluated the impact of intraoperative aberrometry on the prediction error of power calculation for post-myopic LASIK eyes. The M&S holds US Patents 7,354,155; 7,926,948; 8,425,040; 8,167,429; 8,419,184 & 8,550,631. Other Patents Pending. ©2015 M&S Technologies, Inc. Smart System and M&S are registered trademarks of M&S Technologies, Inc. All Rights Reserved. www.mstech-eyes.com 1-877-225-6101 MANUFACTURED IN THE USA Defocus Curve protocol is designed to eliminate the hassles of constantly changing plastic back-lit charts when testing intra- ocular lenses. The efficient, automated, randomized protocol quickly moves the clinician through the test, arriving at a visual acuity score for each lens from +2.0 through -5.0 diopters. It can also measure the effectiveness of correcting for presbyopia. HACSS (Holladay Automated Contrast Sensitivity System) is a scientifically superior computer-driven CSF System with rotationally symmetric targets and randomly presented opto- types. Conforms to ANSI and ISO guidelines and is an accept- able contrast sensitivity test for use in IDE and IND clinical studies of ophthalmic devices and pharmaceuticals. e ETDRS is the computerized alternative to the standard paper or plastic ETDRS charts. Repeatable and consistent from patient to patient and visit to visit. For more information, please call us or visit our website. Ease the Burden of IOL Testing The IOL Testing Suite from M&S solves the problem **Visit Booth 1013 at the ASCRS/ASOA Meeting** continued on page 120

• Cover