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SHAW-Lens-Book.Pdf THE LATEST ADVANCEMENT IN BINOCULAR VISION Aniseikonia WITH OPHTHALMIC Solved LENSES. EXPLORING ITS IMPACT ON PATIENT COMFORT AND VISION GET IT WORKING FOR YOU OD 03 Table of Contents “Majority of patients have a wow experience and said it’s the best lens they’ve ever worn.” Shaw Lens Inc. Clinical trials and research indicate that A Shajani, OD, BC Solving aniseikonia is the single most important thing ........................................4 spectacle-induced aniseikonia is a principal cause Why is dynamic aniseikonia so important? .....................................................5 of patient discomfort with eyeglasses. There are Symptoms ...............................................................................................6 Binocular Lens Design ..................................................................................7 no norms for tolerance to aniseikonia. This book Differentiate your practice ............................................................................9 Love at First Sight Guarantee ......................................................................11 contains real-life case summaries that demonstrate When to use the SHAW lens ......................................................................12 how solving aniseikonia can dramatically improve Case Summaries SHAW lens NO PATCH amblyopia treatment .........................................13 a patient’s experience with glasses. Amblyopia – Straight-eye amblyopia with monocular hyperopia .............................14 Amblyopia – Adult refractive amblyopia with unequal hyperopia .............................15 Aniseikonia – Axial length changes from retinal detachment surgery ...........................16 Designed by an optometrist for optometrists, the SHAW™ lens Anisometropia – Sudden onset due to monocular cataract surgery ............................17 is a comprehensive system that makes binocular lens design Low Rx Presbyope – New progressive lens wearer ..........................................19 simple and foolproof. We can do better for our patients – and Anisometropia – Low myopia with low motor fusion limits ....................................20 that’s the driving force behind the SHAW lens. Astigmatism – Meridional anisometropia .......................................................21 Myopia – Moderate myopia contact lens wearer with trouble adapting to glasses ............22 Prismatic correction – Linear prism correction for esophoria .................................23 Refractive surgery – Post Lasik regression ......................................................24 Better medicine is good business ................................................................25 Consult with Dr. Peter Shaw ........................................................................26 02 Solving aniseikonia is the single most important factor in patient comfort. Today, with the advent of digital manufacturing, all lenses perform pretty much the same. The differences between them are miniscule at best. And yet, they all do one thing wrong. They all treat vision in a monocular manner. The SHAW lens is different. The SHAW lens is a truly binocular vision system. It uses a patent-pending method that takes measured motor fusion limits (vergences), the prescription, and position-of-wear information into account in the design of a pair of lenses. This provides unparalleled binocular vision. The resulting “These new glasses SHAW lens is designed to maintain induced prismatic effect that are a relief.” falls within the individual patient’s limits. It solves aniseikonia E Freidman (Patient), ON 04 “ Up to 56% of those 18 to 38 have Symptoms of Aniseikonia symptoms related to a binocular vision Headaches1 Eye Strain1 Can’t see 3D-TV2 problem.” – Dr. Dominick Maino, Professor, % % % Illinois College of Optometry, Why is Illinois Eye Institute 67 67 12 dynamic Light sensitivity1 Reading Nausea1 difficulties1 aniseikonia % % % so important? 27 23 15 Clinical trials indicate that solving Tolerance of static and dynamic What is dynamic aniseikonia? dynamic issues is the single most aniseikonia varies widely from patient Double vision1 Nervousness1 Dizziness1 important aspect of patient comfort with to patient but fortunately it can be Dynamic aniseikonia (anisophoria) is a pair of glasses. Conventional lenses predicted through vergence testing. Our the difference in the ability to make induce aniseikonia by the very nature recommended method is to use Risley compensated eye movements to of their monocular design. prisms to determine the motor fusion achieve foveal fixation of a peripheral limits. (Base down to break OD, base target object. % % % Simply put, the image in each eye is a up to break OD, base in to break OU, different size – both are clear but the base out to blur/break OU.) This It is generally the result of the spectacle brain has trouble putting different-sized establishes the vergence (motor fusion) correction of anisometropia, meridional 11 11 7 images together. And when they move facility in both lateral and vertical aniseikonia due to asymmetrical around, the dynamic aniseikonia makes meridians in primary gaze at distance. astigmatism, curvature at the spectacle it even harder to fuse the images. Studies plane due to the frame’s face form have shown that it is the dynamic aniseikonia With the SHAW lens design tool, the angle and/or prescribed prism. Other Fatigue1 Distorted Vision1 Lack of Depth that causes many of the symptoms. And optometrist can then predict the patient’s causes include extraocular muscle 1 all an OD has been able to do is tell the motor fusion facility and design a lens paresis and oculomotor anomalies. Perception patient, “You’ll get used to it.” that falls within those values. Solving aniseikonia can make a noticeable We don’t think that’s good enough. difference for a surprising number of %Z % % patients. Z ZZ7 6 6 1. B. E. Bannon, W. Triller, Aniseikonia - a clinical report covering a ten year period. Am. J. of Optometry, 1944. 171. 2.1 3D. B. Vision E. BCouncil.anno Vn,ision W Institute,. Trill e2011r, Aniseikonia - a clinical report covering a ten year period. Am. J. of Optometry, 1944. 171. 2. 3D Vision Council. Vision Institute, 2011 06 Automated Corridor Length 23˚ 23˚ Adjusted for Position of Wear Available Lenses: Image Size Matching E E E E Progressive Addition, Office and Digital Single Vision Others SHAW lens Index Clear TransitionsTM Polarized Cylinder Prism Add Distortion Elimination 1.50 -9.00 to +8.00 -9.00 to +6.50 -9.00 to +6.50 -5.00 5 0.50 to 4.00D 1.59 -9.00 to + 8.00 -9.00 to + 6.50 -9.00 to +6.50 -6.00 5 0.50 to 4.00D 1.60 -14.00 to +9.50 -14.00 to +9.50 -14.00 to +8.00 -6.00 5 0.50 to 4.00D Others SHAW lens 1.67 -16.00 to +12.50 -16.00 to +9.50 -15.00 to +9.50 -6.00 5 0.50 to 4.00D 1.74 -18.00 to +11.50 -18.00 to +11.50 -6.00 5 0.50 to 4.00D Prescribed Prism FT28 Bifocal Reduced Curvature Binocular Index Clear TransitionsTM Polarized Cylinder Prism Add Prismatic Effect Correction 1.50 -9.00 to +8.00 -9.00 to +6.50 -5.00 5 1.00 to 3.50D 1.59 -9.00 to + 8.00 -6.00 5 1.00 to 3.50D Lens Design Others SHAW lens At the core of what makes the SHAW And it works Optimized corridor length Coatings Tints lens different is our sophisticated lens This technology was awarded a prestigious Corridor length is automatically • All lenses supplied with Super-anti- • T ransitions “This is design. Our lens design tool uses a grant from the American Optometric specified based on frame dimensions reflective, anti-scratch, hydrophobic • Polarized patient’s prescription, motor fusion limits Foundation and resulted in its inventor, and position of wear measurements to and oleophobic coatings • Custom and position-of-wear information to design Dr. Peter Shaw, being made Adjunct determine the optimal reading zone a lens that falls within his or her binocular Associate Professor at the University of for that patient. hard-core vision limits. Waterloo School of Optometry and Vision Science. The patent-pending, patient-centred methodology of the SHAW lens combines Quality manufacturing optometry” the physics of refractive optics with the SHAW lenses are manufactured and physiology of the individual’s binocular delivered in partnership with an international -A Glazier, OD, MD vision system to create a bridge between lens manufacturer that offers the wide pure and applied science. range of base curves necessary for o optimal use of the SHAW lens design. 23 Rather than relying on the patient adapting to an arbitrary “normal” value, the SHAW lens design software does Corridor length optimized for a the complex math and automatically comfortable 23° of downward determines the appropriate index, gaze for reading. corridor length, base curve and centre thickness to solve aniseikonia to prescribed limits and give the best binocular vision results. 08 “ I think this lens will be a game Differentiate changer for us and further differentiate us from the pack” your practice A Shajani OD, BC Show your patients the difference you and the SHAW lens can make to their vision – before they buy! Eyeglasses are becoming commoditized. With online optical the message is that eyeglasses are simple devices. We both know that is far from the truth. Using the SHAW lens app, you can demonstrate the outcome that you and the SHAW lens can make to their vision. It’s a great tool to help you demonstrate the difference you bring. And because of our passion to optometry, the SHAW lens is only available from an authorized independent optometry
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