EyeWorld Chinese December 2021 Issue

Supported by Ahmed explained that there are many ways to address the interest in different ranges of visions and includes using multifocal IOLs, EDOF IOLs, and monofocal IOLs. For example, monovision can be classi ed in many ways and to many degrees. Micro-mono- vision may be helpful for some EDOF IOL designs while monofocal lenses may be appropriate to set at -1 D and -1.5 D, depending on the patient’s interest. In picking the right presby- opia-correcting (PC) IOL, surgeons should aim to match their patients’ expectations while understanding that there is always some tradeoff when manipulating light. The factors we have when it comes to choosing the right IOL include maintaining visual quality and contrast, enhancing range of vision and depth of eld, and minimizing dysphotopsia. While high visual quality can be prioritized, there may be a tradeoff of dysphotopsia, and Dr. Ahmed says that he does not shy away from that point when discussing outcomes with patients, stating that the conversation is very important prior to implantation. “Halos and glares are tolerable for the vast majority of patients as we’ve seen from clinical studies.” Case discussions: Achieving Spectacle Independence Suc- cess with Presby- opia-Correcting IOLs Ike Ahmed, MD, Canada “We have seen a variety of technologies that have emerged in the market in the last couple of years,” says Ike Ahmed, MD, the cas- es he presented during the webinar highlighted these technological advances” With the evolving visual needs of patients and the shift towards digital platforms amongst all age groups, it is important to consider a variety of lens options to enhance spectacle freedom. When considering near vision, clinicians must think further than just discussing outcomes in terms of reading vision. Near vision can consist of a variety of tasks outside of reading, and includes person- al working distance which can vary from patient to patient. It is also helpful to correlate defocus curves to function: the more the lens is able to maintain excellent vision, there is an increase in range of vision. For near vision tasks such as reading books and newspapers or using mobile devices, patients may require a lens that provides more than 2.5 diopters of defocus. Dr. The TECNIS Synergy™ IOL is one of the more novel IOLs with a hybrid design of the lens, rather than having a trifocal design. TECNIS Syner- gy™ provides a good continu- ous range of vision as well as having the best low-light per- formance compared to other trifocal IOLs. “Contrast sen- sitivity and low-light contrast is enhanced in TECNIS Syner- gy™ particularly for eyes with larger pupils which is quite unique,” says Dr. Ahmed. This is primarily due to the active chromatic aberration design of this lens as well as the optical material. The aspheric design of the lens and violet light ltering also enhance contrast for this lens. In one case presentation, a 58-year-old female nurse reported reduction of vision in both eyes having used mono- vision contact lens. She was keen on spectacle indepen- dence and her lifestyle is quite active with hiking, mountain climbing, and partaking in hobbies where lower con- trast vision is important. She also performs a lot of near to intermediate work as a nurse, going back and forth between computer work and near work such as placing IVs and draw- ing blood. Upon preoperative assessment, visual acuity was 20/30 OD and 20/40 OS, and the patient had 2+ NS OU, mild dry eye disease, 1+ PEE, and uses arti cial tears 2 to 3 times a day. With the implanted TECNIS Synergy™ IOL in both eyes, the patient’s issues were addressed. The patient reported a full range of vision and the ability to do all tasks at work while being able to hike during dusk with no issues. Dr. Ahmed stat- ed that Synergy™ is a great choice for providing patients with great near vision and low contrast vision. With the good clinical outcomes of Syner- gy™, “this is how technology is moving forward.” Graham BARRETT Australia Han Bor FAM Singapore Ike AHMED Canada Copyright 2021 APACRS. All rights reserved. The views expressed here do not necessarily reflect those of the editor, editorial board, or publisher, and in no way imply endorsement by EyeWorld, Asia-Pacific or APACRS. All other trademarks are the intellectual property of their respective owners. © Johnson & Johnson Surgical Vision, Inc. 2021 PP2021CT6299 Hiroko BISSEN-MIYAJIMA Japan Ronald YEOH Singapore “ Contrast sensitivity and low-light contrast is enhanced in TECNIS Synergy™ particu- larly for eyes with larger pu- pils which is quite unique. ” Dr. Dr. Ike Ahmed