|Shamir Office relieved a nearsighted presbyopic patient’s complaints of poor vision and back and neck pain at work.|
In these case studies, free-form lenses were the perfect solution for patients’ optical problems.
All eyecare professionals (ECPs) know their responsibility is not only to recommend eyewear but also to solve problems. The following examples illustrate how some patients benefited from free-form lens technology and the expertise of the optician fitting and dispensing it.
Patient Profile: A 65-year-old male patient of Kelly Huntsinger-Chasnov, LDO, (practicing at Eyetopian Optical, Fort Meyers, FL) is a retired CEO. He was not seeing clearly at the computer, he was experiencing eye fatigue and strain during near tasks, and his progressive addition lenses (PALs) were not working well for him. His new Rx was OD +6.50D sphere; OS +6.75D -0.50D x 131; add +2.25D OU.
Action: Huntsinger-Chasnov discovered that this patient always wore traditional PALs. Because previous lenses were not working for him, she recommended free-form technology.
Solution: Huntsinger-Chasnov fit her patient with a KODAK Unique PAL from Signet Armorlite, Inc. because of its synchronized front and back surface and customized lens design that promises to give patients comfortable binocular balance while eliminating eye fatigue. The patient picked up his new glasses, instantly noticed a significant difference in his vision, and commented on how crisp and clear everything was. He compared it to high-definition television. The patient confessed that he had gone elsewhere while on vacation, but the optician he saw knew nothing about free-form.
Huntsinger-Chasnov reports that the patient is exceedingly happy with her recommendations and that she has made a client for life.
Patient Profile: Robert McBeath, ABOC, (Manager of the Eyewear Specialists practice, Minneapolis, MN) has a female patient in her mid-50s who works in a busy general medicine practice as an LPN. Nearsighted and presbyopic, the patient complained of poor vision and a great deal of back and neck pain at work.
Action: McBeath asked about her workspace and how it was configured for posture considerations. Due to new responsibilities at work, the patient was using the computer a lot more but still wearing a short corridor conventional PAL. McBeath explained the importance of office lenses and free-form technology.
Solution: He recommended Shamir Office™ lenses designed and processed using Shamir Insight, Inc.’s Freeform Optics™. The backside free-form design increases the peripheral intermediate area because the corrected curves are placed closer to the eye. The lens’ design enhanced her depth perception, and its expansive clear optics helped relax her neck and shoulders, thus reducing her
|Double Surface Design places the vertical progressive components on the front of the
HOYALUX iD Lifestyle and the horizontal components on the back.
stress. An anti-reflective (AR) treatment was applied to enhance her vision and eliminate reflections. MacBeath delivered the eyewear to her workplace so she could receive direction on how to properly use it.
When this patient received her new free-form computer lenses, she said, “My vision in my workspace cleared up immediately.” She later reported that her vision was so good with them that she forgot she had them on and wore them home.
Patient Profile: A 54-year-old female patient of Carol Kalwa-Pickron (practicing at the Ramsey Eyecare optometric practice, Charleston, WV) is a college professor who works primarily from home. The patient was unhappy with her current PALs, and she complained that her peripheral vision was distorted and that her eyewear was uncomfortable to wear all day. Her Rx is OD: -5.00D -0.75D x 110; OS: -4.75D -1.25D x 85; Add +2.75D OU.
Action: Kalwa-Pickron discovered that the patient now spends more time in her home office although she also often enjoys the outdoors. As a result, her need for wider intermediate vision increased. Kalwa-Pickron recommended sev-eral digitally processed PALs.
Solution: She ultimately fit the patient with a Varilux Physio 360°® (from Essilor of America, Inc.) in 1.67-index material with Transitions® VI technology and Crizal Avancé with Scotchgard™ Protector AR. The W.A.V.E. Technology: Wavefront Advanced Vision Enhancement™ and design of the Physio 360° reduced aberrations (which the patient referred to as distortion) and gave her greater clarity and more comfortable viewing in the intermediate and near zones. The 1.67-index material enabled her eyeglasses to be lightweight and thin enough to be in a rimless frame, which was an added perk, and the AR treatment helped her fight computer glare.
The ability to combine high-tech lens material and Transitions technology along with wavefront technology and digital surfacing was the answer here. This patient reported, “The performance of these glasses surpassed my expectations!”
HOYA VISION CARE, North America will tell you that no two patients see the same way, so no two lenses should be designed the same way either. With that in mind, the Integrated Double Surface Design of the HOYALUX® iD® Lifestyle® lens (or the short corridor HOYALUX® iD LifeStyle cd™) has its vertical progressive components placed on the front to minimize eye movements while horizontal progressive components are placed on the back surface to bring unwanted astigmatism powers closer to the eye. This reduces the effect on peripheral vision and produces wider, undistorted vision at all distances. These lenses also address and minimize skew distortion, which is troublesome for wearers because it distorts the size and shape of objects and creates swim that can make wearers uneasy. A lens like this can be a real problem solver, especially with patients who have had adaptation symptoms in the past.
Seiko Optical Products of America, Inc.’s Succeed Internal Free-Form™ and Supercede Internal Free-Form™ PALs use back-surface progressive optics to offer wider, clearer fields of view and are especially good for prior non-adapts. Seiko uses a spherical design on the front surface in order to eliminate distortion so wearers experience stable, smooth vision throughout the lens, with no annoying distortion. The back-surface optical progressive design also results in wider fields of view, so patients don’t feel visually “cramped” with their lenses. In addition, Succeed and Supercede PALs are optimized so they don’t suffer from the base curve restrictions encountered in conventional designs. Instead, lens optics are maximized for every Rx so the wearer receives a customized lens with an exact prescription in each area of the lens.
ProFit Optix offers a number of free-form lenses including the Identity PAL from Optixx, a lens produced in Switzerland and marketed exclusively in the U.S. by ProFit. The three lenses under the Identity brand are: Standard for universal wear, Outdoor for predominantly outdoor use, and Office primarily for indoors. With each lens available in three corridor length choices, this kind of variation gives ECPs nine options to employ based on patient needs. The Upgrade free-form aspheric single vision lens is also available.
Free-form progressive lenses have become today’s state-of-the-art products. As they do, they’ll continue to be good problem solvers for ECPs.
Jackie O’Keefe is a writer, lecturer, and course preparer on various optical topics, and consultant in the Virginia Beach, VA, area.
WHERE TO FIND IT
Essilor of America, Inc.
800-542-5668 • essilorusa.com
HOYA VISION CARE, North America
877-528-1939 • hoyavision.com
866-996-7849 • profitoptix.com
Seiko Optical Products of America, Inc.
800-235-5367 • seikoeyewear.com
Shamir Insight, Inc.
877-514-8330 • shamirlens.com
Signet Armorlite, Inc
800-950-5367 • signetarmorlite.com