EyeWorld India September 2017 Issue

6 September 2017 EWAP CONTENTS P U B L I S H I N G S TA F F Publisher APACRS Charity Wai apacrs@snec.com.sg Donald R. Long don@eyeworld.org APACRS Editorial Kathy Chen kathy.chen@apacrs.org Huang Weitian ewap@apacrs.org Christine Shimmon Aileen Bian Senior Staff Writer Chiles Aedam R. Samaniego ASCRS Editorial Editor Amy Goldenberg Managing Editor Stacy Jobionski Senior Staff Writer/Digital Editor Ellen Stodola Staff Writer Liz Hillman Production Graphic Designer Julio Guerrero Graphic Design Assistant Susan Steury Production Manager Cathy Stern Production Assistant Carly Peterson S e p t e m b e r 4FQUFNCFS 7PMVNF t /P Contributing Writers Vanessa Caceres – Bradenton, Florida Stefanie Petrou Binder, MD - Berlin, Germany Michelle Dalton – Reading, Pennsylvania Rich Daly – Arlington, Virginia Lauren Lipuma – Washington, DC Michelle Stephenson - Roanoke, Virginia Senior Contributing Writer Maxine Lipner – Nyack, New York Advertising Sales ASCRS Media 4000 Legato Road Suite 700, Fairfax, VA 22033 r GBY FZFXPSME!FZFXPSME PSH r XXX FZFXPSME PSH Director Donald R. Long don@eyeworld.org Advertising Sales Manager Paul Zelin paul@eyeworld.org (1-703) 383-5729 Classified Sales Cathy Stern cathy@eyeworld.org (1-703) 591-2220 EyeWorld Special Projects and Events Jessica Donohoe Jessica@eyeworld.org (1-703) 591-2220g Shelly Dixon shelly@eyeworld.org APACRS Publisher : EyeWorld Asia-Pacific Edition (ISSN 1793-1835) is published quarterly by the Asia-Pacific Association of Cataract & Refractive Surgeons (APACRS), c/o Singapore National Eye Centre, 11 Third Hospital Avenue, Singapore 168751, telephone (65) 6322-7469, fax (65) 6327-8630, email apacrs@snec.com.sg. Printed in Singapore. EyeWorld Asia-Pacific Chinese Edition (ISSN 1521-7566) is jointly published quarterly by the Asia-Pacific Association of Cataract & Refractive Surgeons (APACRS), c/o Singapore National Eye Centre, 11 Third Hospital Avenue, Singapore 168751, telephone (65) 6322-7469, fax (65) 6327-8630, email apacrs@snec.com.sg; and the Chinese Ophthalmological Society (COS), c/o Chinese Medical Association, 42 Dongsi Xidajie, Beijing 100710, PR China, telephone (86-10) 6524-9989 ext 2456, fax (86-10) 6512-3754. Printed in Beijing, PR China. Editorial Offices : EyeWorld Asia-Pacific Edition: Asia-Pacific Association of Cataract & Refractive Surgeons (APACRS), c/o Singapore National Eye Centre, 11 Third Hospital Avenue, Singapore 168751, telephone (65) 6322-7469, fax (65) 6327-8630, email apacrs@snec.com.sg. EyeWorld Asia-Pacific Chinese Edition: Chinese Ophthalmological Society (COS), c/o Chinese Medical Association, 42 Dongsi Xidajie, Beijing 100710, PR China; telephone (86-10) 6524-9989 ext 2456; fax (86-10) 6512-3754. EyeWorld News Service : 4000 Legato Road, Suite 700, Fairfax, VA 22033-4003, USA, toll-free (1-800) 451-1339, telephone (1-703) 591-2220, fax (1-703) 273-2963, email eyeworld@eyeworld.org. Advertising Offices : ASCRSMedia, 4000 Legato Road, Suite 700, Fairfax, VA 22033-4003, USA, telephone (1-703) 591-2220, fax (1-703) 273-2963, email dlong@eyeworld.org. Copyright 2005, Asia-Pacific Association of Cataract & Refractive Surgeons (APACRS), c/o Singapore National Eye Centre, 11 Third Hospital Avenue, Singapore 168751, telephone (65) 6322-7469, fax (65) 6327-8630, email apacrs@snec.com.sg. Licensed through the American Society of Cataract & Refractive Surgery (ASCRS), 4000 Legato Road, Suite 700, Fairfax, VA 22033-4003, USA. All rights reserved. No part of this publication may be reproduced without written permission from the publisher. Letters to the editor and other unsolicited material are assumed intended for publication and are subject to editorial review and acceptance. The ideas and opinions expressed in EyeWorld Asia-Pacific do not necessarily reflect those of the editors, publishers or its advertisers. Subscriptions : Requests should be addressed to the APACRS publisher, c/o Singapore National Eye Centre, 11 Third Hospital Avenue, Singapore 168751, telephone (65) 6322-7469, fax (65) 6327-8630, email apacrs@snec.com.sg. Back copies : Subject to availability. Contact the APACRS publisher, c/o Singapore National Eye Centre, 11 Third Hospital Avenue, Singapore 168751, telephone (65) 6322-7469, fax (65) 6327-8630, email apacrs@snec.com.sg. Requests to reprint, use or republish: Requests to reprint or use material published herein should be made in writing only to the APACRS publisher, c/o Singapore National Eye Centre, 11 Third Hospital Avenue, Singapore 168751, telephone (65) 6322-7469, fax (65) 6327-8630, email apacrs@snec.com.sg. Change of address : Notice should be sent to the APACRS publisher, c/o Singapore National Eye Centre, 11 Third Hospital Avenue, Singapore 168751, six weeks in advance of effective date. Include old and new addresses and label from a recent issue. The APACRS publisher cannot accept responsibility for undelivered copies. KDN number: PPS1766/07/2013(022955) MCI (P) 083/02/2017 REFRACTIVE SURGERY Nonsurgical treatment of presbyopia 45 What drops can do by Maxine Lipner LASIK patients benefit from plugs at the time of surgery 47 Symptom questionnaire scores, corneal staining, and osmolarity improve with punctal occlusion by Eric Donnenfeld, MD High oxygen enhances epi-on PiXL efficacy 49 Preliminary data shows corrections of more than 1.0 D in cases of low-grade myopia using 4-mm epi-on PiXL under high-oxygen conditions by Stefanie Petrou Binder, MD Wavefront-guided vs. wavefront- optimized laser treatments 51 Both provide good outcomes with minimal induction of higher-order aberrations by Michelle Stephenson GLAUCOMA Evolution of tonometry: Are we overdue for a new clinical standard? 53 The Goldmann tonometer’s shortcomings are well documented; might newer tonometers provide a better clinical standard? by Tony Realini, MD, MPH Primary tube versus trabeculectomy study 54 Clarifying the optimal surgical care process for glaucoma by Tony Realini, MD, MPH DEVICES Femtosecond corneal laser platforms: Offering better vision and better flap predictability than microkeratomes 55 The first in this series highlights three femtosecond lasers available today by Michelle Stephenson PHARMACEUTICALS Delivering on sustained promises for glaucoma 57 Intraocular and periocular external drug delivery systems by Maxine Lipner 51 58 APACRS Secretariat 11 Third Hospital Avenue, Singapore 168751 'BY &NBJM BQBDST!BQBDST PSH 8FCTJUF XXX BQBDST PSH