This retrospective study assessed the relationship between baseline axial length and subsequent elongation for myopes wearing orthokeratology lenses. The results showed axial elongation was slower over two years for younger children with longer baseline axial lengths. This may help in approaches to optimizing myopia control.
The most important step in successful orthokeratology (ortho-k) fitting starts with identifying suitable candidates. From there, obtaining high-quality corneal topography maps, lens fitting, and adhering to an appropriate follow-up schedule define the process. If you’re getting started in orthokeratology, it’s a good idea to begin with a straightforward patient, such as those described below. This article will discuss who the ideal candidates are for ortho-k.
We speak to Peter Nijhuis, Division Head Myopia Management Business Division at Menicon about the Menicon Bloom comprehensive system for myopia management with contact lenses, and about three years of experience in the Netherlands with this landmark system.
A new study has shown that an ‘extra compression factor’ of 1D, which is essentially increasing the treatment target, improved myopia control outcomes for children wearing orthokeratology. This would seem to indicate a different approach is needed for myopia control, but delving into the study reveals the story is not that simple.
This reanalysis of data from 2 clinical trials evaluated the relative risk of fast axial eye growth in children wearing ortho-k lenses. The results showed that although younger children (6-8 years) experienced faster eye growth than older children (9-12 years), they also benefitted more from ortho-k in slowing their progression when worn for a 2-year period.
Orthokeratology fitting to children is increasing in frequency worldwide, due to its volume of evidence for myopia control. Learn what data inputs are needed and how to best use your topographer for accurate ortho-k lens design.
This review investigated 18 years of practice data for the predictability, efficacy and safety of long-term ortho-k wear. The results showed that for at least one year’s wear, there was good efficacy and predictability of target refraction. Although corneal staining was common, serious adverse effects were found to be rare, particularly for children.
A dose-response is where an increasing amount of a medication or intervention is correlated with a better clinical outcome. When it comes to myopia control, we investigate the evidence for a dose-response with spectacle, contact lens, atropine and outdoor time interventions.
In our Q&A interview format, we talk to Mario Teufl, optometrist from Austria, who explains how he uses the Topcon MYAH in his practice for myopia management – from axial length to topography to dry eye and more.
After 1 month of wearing orthokeratology lenses, children were shown to have reduced accommodative lag and increased blur sensitivity, leading to the suggestion that blur adaptation is conducive in achieving good visual acuities and visual function in ortho-k wear.
