MYOPIA MANAGEMENT

WHAT IS MYOPIA

Myopia is known as short-sightedness or near-sightedness. It happens when the focus point falls in front of instead of on the retina, resulting is poorly focused vision. The further the focus point is from the retina, the more out of focus the vision will be. This is particularly important in children as their education and leisure activity such as sports may be affected.

CORRECTED FOCUSSED EYE

MYOPIC EYE

MYOPIA CORRECTION VERSUS MYOPIA MANAGEMENT

You may ask what is the difference. Myopia correction is a traditional way of dealing with myopia. This simply means prescribing spectacles or contact lenses to bring the focus point onto the retina, providing a focused image. However, as you may know, myopia tends to worsen as the child grows until late teens or early 20s. This is particularly rapid between 8-15 years old.

High myopia has future implications such as increase cost of spectacles, more dependence of spectacles and higher risk of ocular complications. The higher the myopia, the greater the risk (Flitcroft 2012).

Myopia management is a more proactive approach to deal with myopia, especially to the rate of progression. We do not have a solution to reverse or halt myopia progression but we now have evidence-based product to reduce the speed of myopia progression.

MiSight contact lens has been showed to reduce the rate of progression by 59% in children aged 8-15 years old (Chamberlain et al 2019; Sankaridurg 2017) . This means if a child were to progress from -1.00D at age 8 to -5.00D at age 12, wearing MiSight throughout that period may slow progression to only -3.00D at age 12.

This has a proven safety profile and well-tolerated in a 3-year study (Chamberlain 2017) and this is maintained in a 5-year study (Chamberlain et al 2019(2)).

Figure 1: The rate of myopia progression in MiSight versus Control group.

MiSight is made of soft daily disposable material which ensure optimum sterilty, comfort and simplicity, considering children will be using this product. Teaming with the ultimate care we provide, we will ensure the fitting and aftercare process is as smooth as possible.

ARE THERE OTHER OPTIONS?

Over the next year or two, more products will be available in this category. MiSight is the first licensed product to reduce myopia progression. Orthokeratology, commonly known as OrthoK, is another proven solution to reduce myopia progression (Sankaridurg 2017). This is a rigid contact lens to be worn during sleeping hours and to be removed during waking hours. Hence the patient will enjoy focused vision without spectacles or contact lenses. This is suitable for adults too, which active lifestyle demands freedom from spectacles and contact lenses. This process is also reversible which most people find desirable. Although this is proven to be effective, this is an off-license use for children for the purpose of myopia management. OrthoK will be available within 2020 in our Emsworth practice. Watch this space!

Off-the-shelf soft multifocal contact lens, bifocal and varifocal spectacles were tried with little success (Sankaridurg 2017).

Hence MiSight is the safest and most efficient in controlling the progression of myopia. The next up will be OrthoK, which will be available soon.

WHERE IS IT AVAILABLE

MiSight can only be fitted by accredited practitioners at specific practices. Our qualified optometrist, Mr Seer Hor, is accredited to fit MiSight in Emsworth and is happy to consult children on suitability. Please contact Emsworth practice and quote MiSight to book in. To have the best outcome, we recommend an up-to-date eye examination before the fitting of MiSight. 

References

Chamberlain P, et al. (2017) Clinical evaluation of a dual-focus myopia control 1 day soft contact lens - 3-year results BCLA.

Chamberlain PPeixoto-de-Matos SCLogan NSNgo CJones DYoung G (2019) A 3-year Randomized Clinical Trial of MiSight Lenses for Myopia Control. Optom Vis Sci.; 96(8): 556-567

Chamberlain P, Logan N, Jones D, Gonzalez-Meijome J, Saw S-M, Young G. (2019) Clinical evaluation of a dual-focus myopia control 1 day soft contact lens: 5-year results (BCLA Clinical Conference & Exhibition).

Flitcroft, D. I. (2012). The complex interactions of retinal, optical and environmental factors in myopia aetiology. Progress in retinal and eye rese­­­arch, 31(6), 622-660.

Sankaridurg P. (2017) Contact lenses to slow progression of myopia. Clinical and Experimental Optometry;100(5): 432-437

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