Nearsightedness Control

nearsightedness myopia controlAt Fremont Eye Centre, we offer different options for nearsightedness control. These include orthokeratology (ortho-k), DR Dynamic lenses and MyoVision lenses by Zeiss, bifocal lenses and MiSight contact lens by Cooper Vision.

What is nearsightedness (or myopia)?

Nearsightedness is the most common refractive error of the eyes making distance vision blurry. It is common in children especially when they are growing. When the eyeballs become longer, it creates a mismatch between the refractive power of the eye and the length of the eyeball.

Why do we need nearsightedness control?

For children who would develop high levels of nearsightedness, slowing down the progression could mean a lower prescription giving clearer vision, thinner glasses lenses and more options with contact lens wear. In addition to lower prescription, it also yields a lower incidence of retinal detachment and glaucoma, both of which are associated with high level of nearsightedness.

“Recent years have been marked by dramatic increases in the prevalence of myopia worldwide, reaching near epidemic proportions in many urban Asian communities. In East Asia, nearly 50% of urban populations are myopic, and the prevalence figure for university student populations is approximately 90%. In parallel with the rising prevalence figures, there has also been an increase in the average degree of myopia, with Chinese populations recording some of the largest increases. The rate of progression of myopia is fastest among young children with an approximate rate of 0.50 D per year across various ethnicity groups.”

Liu YM, Xie P. The Safety of Orthokeratology—A Systematic Review. Eye & contact lens. 2016;42(1):35–42.

Orthokeratology (Ortho-k) orthokeratology

Orthokeratology, also known as corneal reshaping therapy, is a specialty contact lens fitting using a gas permeable contact lenses worn overnight to change the corneal curvature, thus modifying the cornea’s refractive power. Combining its unique advantage of providing clear unaided vision during daytime, orthokeratology induces an effective peripheral power profile that control eye growth and hence controlling nearsightedness. Orthokeratology has become one of the most popular and effective choices among children for nearsightedness control.

DR Dynamic Lenses

DR Dynamic lenses by Zeiss are specialized lenses mounted on an eyeglasses frame. Similar to progressive, these lenses provide extra functional accommodation to relax the eyes. The goal of relaxing the eyes is to minimize eyeball elongation which ultimately increase nearsightedness.

Yang Z, Lan W, Ge J, Liu W, Chen X, Chen L, et al. The effectiveness of progressive addition lenses on the progression of myopia in Chinese children. Ophthal Physiol Opt. 2009;29:41–48.

MyoVision™ Lenses

zeiss optical labSimilar to Dynamic lenses, MyoVision™ lenses are specialized lenses mounted on an eyeglasses frame. They are worn for all visual activities including reading and distance vision. Research has shown that MyoVision™ lenses reduce progression of myopia by an average of 30% in children from age of 6 to 16 with at least one nearsighted parent.

Sankaridurg et al, Optometry and Vision Science, Vol 87, No. 9, September 2012.

Bifocal Lenses

Similar to Dynamic lenses, Bifocal lenses are a combination of reading glasses and distance glasses. The upper portion of the glasses contains distance power while the lower portion contains reading power. By relaxing the eyes through the reading portion, we slow down progression of nearsightedness by minimizing eyeball elongation.

Goss DA. Effect of bifocal lenses on the rate of childhood myopia progression. Am J Optom Physiol Optics. 1986;63:135–141.

MiSight Contact Lens misight nearsightedness myopic control

Developed by Cooper Vision, MiSight is a soft daily disposable contact lenses worn during daytime. Not only does it optically correct existing myopia, giving clear distance and near vision, but MiSight has also been proven to slow the progression of myopia in most children.

Talk to us about nearsightedness control today!