Orthokeratology and Myopia Control Management
What Is Myopia Management Control?
Myopia, often called nearsightedness is blurry vision at far. A person with myopia can see things up-close. Myopia progresses when there is a continuous elongation of the eyeball. It cannot really be cured, but its progression can be controlled to slow down.
Myopia control treatments can induce changes in the structure and focusing of the eye to reduce stress and fatigue associated with the development and progression of nearsightedness.
Why is myopia control important? Because high level of nearsightedness has always been associated with serious eye problems later in life, such as glaucoma, early cataracts and even a detached retina.
The patient has to be evaluated for the optometrist to know which type of myopia control management is appropriate.
What Myopia Management Control Do We Offer?
- Contact Lenses
Orthokeratology, also known as Ortho K is fitting of a rigid gas permeable contact lenses to gently mold or reshape the surface of the eye (cornea) during sleep (just like dental retainers). The lenses are removed in the morning upon awakening. Because the cornea has been reshaped, your child does not need to wear eyeglasses or contact lenses anymore in the morning.
Who is this for?
- Athletic and very active kids.
- Those with up to -6.00 D Sphere eye grade.
- Compliant for return visits.
Soft Multifocal Contact Lenses
These lenses are worn during the daytime.
The design includes concentric rings on the lens, with the center providing good vision for far, while the periphery of the lens, helps kids in near focusing.
Bifocal Eyeglass Design
These lenses have a line bisecting the lens. The top portion is for far vision, while the lower portion is for near vision.
Who is this for?
This is for patients with progressing myopia who have eye teaming and eye coordination problems.
Progressive Design Eyeglass Lenses
This technology is based on more than 10 years of research. They are proven to reduce significantly the progression of myopia and is definitely better than prescribing normal single vision lenses.
Who is this for?
These lenses are designed to limit the effort in near vision and reduce the accommodation lag.
Peripheral Defocus Design
This applies the principles of Peripheral Defocus Management: the correction of the peripheral “hyperopic shift” affecting myopic eyes sends a signal to the eye to reduce the progression of eye elongation, which can result in the reduction of myopia progression. 1
Studies in Myopia Control
Researches in Spain, Japan, Hong Kong and Taiwan showed that children in the eyeglasses group had a significantly greater increase in the mean axial length of their eyes than children who wore the ortho-k contact lenses. The study authors concluded that overnight orthokeratology suppressed elongation of the eyes of children in this study, suggesting ortho-k might slow the progression of myopia, compared with wearing eyeglasses.
In 2010, researchers from Australia, China and the United States presented data from a study of experimental myopia control contact lenses worn by Chinese schoolchildren for six months. The contacts had a special dual-focus lens design with full corrective power in the center of the lens and less power in the periphery.
Participants were between the ages of 7 and 14 at the onset and had -0.75 to -3.50 diopters (D) of myopia, with no more than 0.50 D of astigmatism. A total of 65 children wore the experimental multifocal contacts, and 50 children wore eyeglasses. After six months, the children wearing the specially designed contact lenses had 54 percent less progression of their myopia than the children wearing eyeglasses.