(16) In 1967, Nolan further developed Jessen's technique and reported a successful therapeutic plan to reduce myopia using rigid contact lenses, which he named orthokeratology
. (17) During the 1970s, May and Grant described a different ortho-k fitting method, giving patients large (10mm) flat lenses with a sizeable optical zone (8.5mm) with a series of lenses to optimise corneal flattening.
The authors thank Shanghai Orthokeratology
Study (SOS) Group for assistance in preparation of the paper.
With this idea in mind, it is immediate to think that RGPCLs are being limited to orthokeratology
and vision rehabilitation in those cases where good quality of vision cannot be achieved with SCLs.
is gas permeable rigid contact lenses that used a reverse geometry design, which is worn during sleep to reshape the front surface of the cornea for the purpose of temporary reduction of refractive errors .
is an effective way to correct myopia through corneal reshaping with overnight wear of rigid gas permeable contact lenses.
The Aladdin is a quick, easy-to-use biometer that produces valid and reproducible results that are comparable to those obtained with the IOLMaster 500.21 The added advantage in this case is the ability to have one instrument to provide AL along with corneal topography information, both of which are relevant to myopia management with orthokeratology
Myopia management (myopia control) is the concept of slowing the progression of myopia, primarily in children, through identifying risk factors, suggesting lifestyle adjustments, and prescribing optical corrections such as multifocal or orthokeratology
contact lenses, or less often multifocal spectacle lenses.
More recently, I have begun taking optical coherence tomography scans of the cornea before and during treatment with orthokeratology
A topographer plays an essential role in this management, especially in orthokeratology
. A good topographic map is required initially for baseline data and the ordering of lenses, and then future fitting and management is based off differential maps.
Recently there has been a resurgence of interest in GP lenses, where use of orthokeratology
for myopia control and scleral lenses for the correction of irregular corneal conditions have been increasing around the world.
The launch includes Menicon Bloom Night, which the company explained is the first and only CE-approved orthokeratology
contact lens in Europe for myopia control.
Myopia control in the form of orthokeratology
where patients wear special contact lenses designed to reshape the curvature of their cornea while they sleep; prescribing double vision lenses, or soft multifocal contact lenses even to children; and the use of atropine, an eye drop, have been gaining acceptability.