Optometric Management Special Edition

2015

Issue link: https://optometricmanagementsupplements.epubxp.com/i/587112

Contents of this Issue

Navigation

Page 31 of 59

30 S P E C I A L E D I T I O N 2 0 1 5 • O P T O M E T R I C M A N A G E M E N T . C O M FE ATURE UP YOUR GAME WITH PRESBYOPES New 1-DAY ACUVUE MOIST Brand MULTIFOCAL Contact Lens is a center-near continuous aspheric lens that was de- signed from the ground up, based on data from thousands of successful lens fts. It addresses the natural variation in pu- pil size based on age and refractive power, designed to provide consistent perfor- mance across adds and refractive range. This design feature came from research showing that anatomical differences in presbyopic patients drive differences in ft success. For example, it is well known that pupil size decreases with age. Less well known is the fact that there is a very consistent, natural variation of pupil size by refractive sta- tus, with myopes having larg- er pupils than hyperopes, and high myopes having larger pupils than low myopes (Fig- ure 1). In fact, the difference in pupil size by refractive sta- tus, based on area, can be as high as 24%. Because of their complex optics, the success of mul- tifocal lenses is greatly in- fuenced by pupil size. If the pupil is larger or smaller than the optical design of the lens, for example, the image qual- ity will be reduced. That's why a single optical design just won't work for every presbyope. So, we've created 183 unique optical designs. This sounds like an intimidating number, but it actually means that the work of fguring out the best combination has been done already. Now, for the frst time, each trial lens will deliver a similar retinal image because of the pupil optimi- zation. For every power/add combination, from +6.00D to -9.00D in 0.25D steps, the lenses are designed to optimize visual performance across ~95% of the range of pupil sizes expected for any given refrac- tive error and add power. The result will be consistent performance across the adds and across the refractive range. That means hyperopes will be as successful as myopes, and the lens is a product your patients will continue to enjoy as their presbyopia advances. HYBRID BACK-CURVE DESIGN Lens centration also becomes a critical factor with more complex multifocal optics. The hybrid back-curve design of the lens relies on an aspheric center, as well as low modulus, to help it drape well on the cornea, preserving the integrity of the front-surface optics. Meanwhile, the spherical periphery of the back curve helps maintain centration. The lens has a base curve of 8.4 with a 14.3-mm diameter, but the unique design gives it a very fexible ft profle. In clini- cal studies, normal eyes with Ks between 38.75D and 48.50D could be successfully ft with a single base curve. PROVEN PLATFORM The etaflcon A material has a 30-year track record of success in deliv- ering comfortable lens wear and crisp vision to millions of patients around the world. The proven material of the 1-DAY ACUVUE MOIST Family of Lenses uses dual-action technology to keep moisture in and irritation out, which helps to address the essential needs of the aging eye: • LACREON Technology to lock mois- ture in • An INFINITY EDGE Design and low modulus to minimize mechan- ical irritation • A unique ability to attract and main- tain the protein/enzyme lysozyme in its benefcial natural state § • Class 2 UV blocking † * The combination of this new and inno- vative presbyopia-correction technology with the comfortable, easy-to-ft 1-DAY ACUVUE MOIST Platform means that this lens sets doctors and their patients up for success. In fact, when using the ftting tips, 94% of patients are successfully ft with the lenses in just two pairs or less. Kurt Moody, O.D., F.A.A.O., F.B.C.L.A., is Global Platform Director, Presby- opia Research & Development for Johnson & Johnson Vision Care, Inc. Spotlight on Science The Innovation Behind a Brand New Multifocal Kurt Moody, O.D., F.A.A.O., F.B.C.L.A. Figure 1: For illustrative purposes only. §†* See Page 29 Continued from page 29

Articles in this issue

Links on this page

Archives of this issue

view archives of Optometric Management Special Edition - 2015