Dry Eye?

MY-NOR: AFFORDABLE SOLUTION

Because of its vast range of indices and materials, the My-Nor lens from Norville gives ECPs a myopia management solution they can confidently recommend at an affordable price for suitable patients. Multiple studies8-11 state that myopic eyes have a prolate shape, with a hyperopic tendency in the periphery, increasing elongation in the retina. Therefore, it is essential to not only correct myopia in the central retina, but also to correct the hyperopic defocus in the peripheral retina.

My-Nor is backed by a five-year European clinical study, conducted by the Helmholtz Moscow Research Institute of Eye Diseases, and has been rigorously tested. It was shown to reduce myopia progression on average by 40 per cent, myopic refractive error by 34 per cent, and axial length by 56 per cent. After five years, there was a reduction of 40 per cent in mean power and 31 per cent in axial length, compared to the control group.

My-Nor is a rear surface, freeform lens design using a spherical blank, giving the characteristics of a varifocal: a clear lens without an internal grid or honeycomb. The optical design features consist of a central vision area that provides

NATURALVUE: ENHANCED MULTIFOCAL

The NaturalVue Enhanced 1-Day Multifocal with TripleTear Lubrication is a unique multifocal from Visioneering Technologies, which is exclusively distributed by Positive Impact (PI). NaturalVue is CE mark-approved for both presbyopia and myopia control, enabling both groups to be fitted from the same diagnostic bank.

The enhanced NaturalVue lens is only available from PI and features three comfort agents, including hyaluronic acid, which work together to provide hydration and lubrication throughout the day, locking in moisture and stabilising tears. This is combined with an ultratapered edge profile specifically created for optimal fitting.

NaturalVue boasts a clever, patented design with a rapidly increasing, highly aspheric power curve that creates EDOF through a virtual aperture. A further advantage of the enhanced NaturalVue lens is its extensive power stable refraction at the geometric centre, surrounded by progressive peripheral vision, with asymmetrical positive/myopic defocus in the horizontal meridian.

My-Nor has a wide range of indices – 1.50, 1.53, 1.60, 1.67, 1.74 – with a maximum prescription of -16.00D, with opposite cyls to 6.00.

Unique lens with lubrication boost range up to -12.25D (to +4.00D for presbyopes) which, uncommonly, is also in 0.25D steps. This delivers a major benefit for myopia control where power accuracy is crucial to successful management.

In fact, six years of retrospective data12 showed 95 per cent of children wearing NaturalVue had decreases in refractive error change, with 78 per cent showing a decrease of 70 per cent or more. At all points in time, the average amount of myopia progression observed was ≤ 0.25D from baseline. The average refractive error change slowed by 0.85D (or 85 per cent) as compared to baseline from six to 72 months.

Another benefit when it comes to fitting is that, although it is a multifocal, there is no conventional add and, therefore, it is fitted like a single vision lens. This offers significant chair time savings over zonal multifocal designs.

MYCON: EFFECTIVE AND ATTRACTIVE

With Rodenstock’s new MyCon myopia control lenses, light in the periphery is refracted to hit in front of the retina, slowing eye elongation.

The progression control areas are placed to the sides of the lens to ensure that light in the periphery does not hit behind the retina. Here, they slow myopia progression, or eye elongation, while leaving the main vision zones of the lens undisturbed, creating sharp vision. The focus area in the lens ensures that the child can see sharply wherever they focus their eyes.

When documenting the effects of myopia control lenses, it is important to consider regional differences. As more children in Asia develop high myopia, the positive

Summary

With so many myopia control options available, and doubtless further coming down the line, it surely behoves every practitioner to discuss at least one of these with their patients. It’s an area of practice that can lead to commercial benefits too – helping to forge strong relationships with patients from an early age through to later life.

Please contact NEG’s preferred suppliers to discuss how they can support you in building up your myopia control practice, providing patients with the best outcomes possible.

References

1. Holden B et al. Global prevalence of myopia and high myopia and temporal trends from 2000 through 2050. Ophthalmology 2016 May;123(5):1036-42.

2. Chamberlain P et al. A three-year randomized clinical trial of MiSight lenses for myopia control. Optom. Vis Sci. 2019;96(8):556-567.

3. Chamberlain P et al. Long-term effect of dualfocus contact lenses on myopia progression in children: A 6-year multicenter clinical trial. Optom. Vis. Sci. 2022;99(3):204-212.

4. Chamberlain P et al. Myopia progression on cessation of dual-focus contact lens wear: MiSight 1 day seven-year findings. Optom. Vis. Sci. 2021;98(E-abstract):210049.

5. Compared to SVL (0-24months) + SVL2 (24-30 months) progression. SVL2 was the new control group of 56 children, especially recruited for the third year and fitted with single vision lenses.

6. McCullough et al. Six year refractive change among white children and young adults: evidence for significant increase in myopia among white UK children. PLos One 2016 Jan;19;11(1):e014332.

7. Control of myopia using orthokeratology lenses in Scandinavian children aged six to 12 years. Eighteen-month data from the Danish Randomized Study: Clinical study Of Nearsightedness; TReatment with Orthokeratology Lenses (CONTROL study). Jakobsen TM and Moller F, Department of Ophthalmology, University Hospital of Southern Denmark, Vejle Hospital, Vejle, Denmark.