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Contact Lens for Kids
You may ask, “Why is myopic progression a concern?”
When we talk about controlling myopic progression with optical treatment, contact lens appears to be a relatively popular and the most consistent option.
Myopic progression refers to an increase in your eye prescription over time, while higher prescription has been linked to higher risk of contracting sight-threatening conditions in the future e.g. retinal detachment, glaucoma or even myopic maculopathy.
81% of eye care professionals agree that myopia is an apparent problem that is impacting kids’ eyesight nowadays. With more time spent in front of digital devices, the myopia can progress until an age of 20. They should not have a prescription that only corrects their eyesight, but to slow the increase in prescription too!
Here, we are talking about utilizing Orthokeratology lens a.k.a. Ortho-K and MiSight daily disposable lens as an approach to slow the progression of myopia among kids.
No, we are not creating fears, but an awareness instead!
Ortho-K
A revolutionary non-surgical procedure to correct the vision and effectively control myopic progression among children by gently reshaping the cornea overnight. Basically, wearers just have to put the lenses on during bedtime and enjoy a natural vision during waking hours.
Children who wear Ortho-K lenses are found to have shown a reduction in myopic progression of up to 60%, compared to those who wear single vision lenses. A plus point for Ortho-K wearers – you do not need to wear glasses or contact lens for up to 16 hours the next day! Hence, it is a great alternative to LASIK for those who are not ready for surgery or are concerned about the risk of complications.
What to expect when you begin wearing Ortho-K lenses?
Initially, measurements of your cornea shape will be taken using corneal topographer – an instrument that produces a detailed topographical map of the surface of your cornea. Then, you will need an in-office fitting session to get the most optimal lens fit for your cornea before proceeding to lens ordering. When you begin to wear Ortho-K lenses, you will most likely have some awareness of the lenses on your eyes until you fall asleep. The lenses will then become more comfortable immediately upon insertion with time.
MiSight
The first soft contact lens approved by U.S. Food and Drug Administration (FDA) indicated to slow the myopic progression in children, with an effectiveness of up to 59%. It is a single-use and daily disposable contact lens which is meant to be worn every day, but not overnight.
MiSight is regarded as a dual-focus lens, comprising a central correction zone surrounded by a series of alternating treatment (+2.00DS defocus) and correction zones. The power along the correction zones correct the refractive power, while the +2.00DS treatment zones provide retinal defocus. The zone diameters are chosen based on age-appropriate pupil sizes to ensure good distance vision and and the use of accommodation during near work.
When MiSight is placed on the eyes, one part of the contact lens corrects the distance vision, similar to standard corrective lens. In addition, concentric peripheral rings focus part of the light in front of the retina, forming peripheral defocus – a mechanism which is similar to Ortho-K, which is believed to reduce myopic progression.
Ortho-K VS MiSight: Which Is Better?
There is hardly a superiority when we compare the effectiveness between Ortho-K and MiSight, both are used to control and slow down the myopic progression. Let us bring you through between both of these anti-myopiagenic contact lenses.
What Is Peripheral Defocus?
Uncorrected Myopia: In short-sighted eye, light is focused in front of the retina, causing blurry distance vision. Hence, corrective lenses are needed in order to see clearly at distance.
Standard Myopia Correction: Standard glasses or contact lenses correct myopia at the centre of retina, but the image on the peripheral retina is out of focus. In fact, the defocus at the periphery of retina is found to be a stimulus that triggers the increase in myopic progression.
Optimal Myopia Correction: Both Ortho-K and MiSight effectively correct the myopia not only at the centre of retina, but also correct the peripheral defocus by moving the focal point in front or on the retina.
Following scientifically proven studies, correcting peripheral defocus among myopic children has been an innovative and new thinking in controlling myopic progression. Now, you have seen a bigger picture on these myopic control contact lenses! Unsure of which option to look for? Whether your kids have myopia, astigmatism or you are looking for non-surgical alternative to correct your vision, we are here to make you understand the revolution of contact lenses better!