Eyeworld

World view Myriad of moving parts W hen a cataract patient also has glaucoma, the complexity of surgi- cal planning can escalate quickly. One of my doctors reminded me that when a patient has one un- usual thing, they are more likely to have others. For example, I've found that glaucoma/cataract patients commonly will also have epiretinal membranes. Add a small pupil, IFIS, a shallow chamber, and some astigmatism, and there is a myriad of moving parts. Fortunately, our op- tions and tools have improved dramatically as glaucoma surgeons seek to achieve outcomes in complex patients that rival the rapid recoveries and excellent vision reported by patients without glaucoma. I started practice when the lingering effects of pilocarpine were still caus- ing small and bound down pupils in glaucoma patients. Two decades ago the predominant treatment for these permanently small pupils was a sector iridectomy. As pilo fell out of favor as a glaucoma treatment, it looked like pupil problems were disappearing, with the large exception of pseudoexfo- liation. Then IFIS emerged and pupil issues were back with a vengeance. We are fortunate to have Bradford Shingleton, MD, Paul Harasymowycz, MD, and Parag Parekh, MD, offer insight on how to handle these difficult cases. We've come a long way from sector iridectomies and now can choose from a variety of rings and hooks. It's even often possible to leave the iris looking like it was normal to begin with. Shallow chambers are another area of immense progress. Perhaps the greatest game-changer is the dry pars plana vitrectomy. A few seconds of vit- rectomy can transform an impossibly shallow chamber into a deep chamber, greatly reducing the risk of the surgery. David Crandall, MD, and Lama Al-Aswad, MD, share their tips on handling these challenging cases. My per- sonal record for a short eye was 15.0 mm. I piggybacked two 30 D lenses and the patient was still slightly hyperopic. The eye was very small overall, but the chamber was not particularly shallow. On the other hand, I recently had a patient with an intumescent lens and an axial length of 22.4 mm, but with an almost nonexistent chamber. The dry vitrectomy allowed the chamber to deepen and the case proceeded uneventfully. Cataract surgery offers surgeons a great opportunity to help their glaucoma patients with safe MIGS procedures. The adoption rate for sur- geons either using or wanting to start using the iStent (Glaukos, San Cle- mente, California) has already reached 50%, according to a recent ASCRS survey. Richard Lewis, MD, Jason Bacharach, MD, Arsham Sheybani, MD, Steven Sarkisian, MD, and Constance Okeke, MD, review the many MIGS options that can be combined with cataract surgery. The increasing collective experience has improved our ability to find the trabecular meshwork and Schlemm's canal, and this will result in better outcomes. There is still an important group of glaucoma patients who need glau- coma surgery alone; they may already be pseudophakic or phakic without cataract. Ronald Fellman, MD, Ramesh Ayyala, MD, Steven Gedde, MD, Leonard Seibold, MD, and H. George Tanaka, MD, share their expertise in these sight-saving operations. Over the past decade, the controversy has been about whether to perform a tube shunt or trabeculectomy. Now there are several new options, with more on the way. We also anticipate the approval of the Xen Gel Stent (Allergan, Dublin) and the InnFocus (Miami) MicroShunt as direct alternatives to trabeculectomy. Both devices offer the promise of safer and more controlled external drainage procedures. We hope that the tools, techniques, and tips discussed in these articles can help you navigate these challenging waters. Our glaucoma patients expect to have excellent outcomes, and most of the time we can meet their high expectations. EW Reay Brown, MD, glaucoma editor The official publication of the American Society of Cataract & Refractive Surgery A S C R S November 2016 Volume 21 • No. 11 Publisher Donald R. Long don@eyeworld.org Editorial Editor Amy Goldenberg amy@eyeworld.org Managing Editor Stacy Jablonski stacy@eyeworld.org Senior Staff Writer/Digital Editor Ellen Stodola ellen@eyeworld.org Staff Writer Liz Hillman liz@eyeworld.org Production Graphic Designer Julio Guerrero julio@eyeworld.org Graphic Design Assistant Susan Steury susan@eyeworld.org Production Manager Cathy Stern cathy@eyeworld.org Production Assistant Carly Peterson carly@eyeworld.org Contributing Writers Stefanie Petrou Binder, MD Berlin, Germany Vanessa Caceres Bradenton, Florida Michelle Dalton Reading, Pennsylvania Rich Daly Arlington, Virginia Lauren Lipuma Washington, D.C. Senior Contributing Writer Maxine Lipner Nyack, New York Advertising Sales ASCRSMedia 4000 Legato Road Suite 700 Fairfax, VA 22033 703-591-2220 fax: 703-591-0614 eyeworld@eyeworld.org www.eyeworld.org Paul Zelin paul@eyeworld.org 703-383-5729 Classified Sales Cathy Stern cathy@eyeworld.org 703-383-5702 EyeWorld Special Projects and Events Jessica Donohoe jessica@eyeworld.org Shelly Dixon shelly@eyeworld.org ASCRS Publisher: EyeWorld (ISSN 1089-0084) is published monthly by ASCRS Ophthalmic Services Corp., 4000 Legato Road, Suite 700, Fairfax, VA 22033-4055; telephone: 703-591-2220; fax: 703-591-0614. Printed in the U.S. Editorial Offices: EyeWorld News Service, 4000 Legato Road, Suite 700, Fairfax, VA 22033-4055; toll-free: 800-451-1339, 703-591-2220; fax: 703-591-0614; email: eyeworld@eyeworld.org. Advertising Offices: ASCRSMedia, 4000 Legato Road, Suite 700, Fairfax, VA 22033-4055; toll-free: 800-451-1339, 703-591-2220; fax: 703-591-0614; email: eyeworld@eyeworld.org. 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