“For adults, the correctable range is from -0.50 D to -1.50 D. For youths during development (from 4 to 15 years of age), the correctable range is up to -3.00 D. If the youth is hyperopic, the correctable range is up to +3.00 D.”
The lens could be a Boston EO one, you can just buy it on a usual lens store e. g. lens.com.
“The procedure to deal with nearsightedness neurologically is based on a plain “flexible” pair of contact lenses (without any prescription) which you only wear for about 5 minutes—and you do not have to wear them everyday. Neurology is involved instead of reshaping or physiotherapy due to the speed of the treatment. It is quicker than laser treatment and there is no need to allow time for recovery.”
It just should be 0.15 mm thick and have a base curve 0.25-1.00 D flatter than usual:
“You should give the client the specifications in case you would not be available to order a replacement lens. When ordering online, there is no slot to allow the patient to specify the lens’ thickness. The thickness must be 0.15 mm thick. The “comments” section, or equivalent, is probably the only spot to request that specification. Ordering from an eye care specialist ensures that the thickness is correct.” (Replacing an Ortho C lens)
(Info about base curve seemed to disapper since last visit, you’d need a book, chances this chapter is freely accessible)
The improvement is permanent - no reshaping, lasering, cutting etc:
“To maintain the improvement, the goal is to wear them once every 2 or 3 weeks for about 5 minutes–the time it takes to complete the drill. The lenses are for therapeutic purposes only—not a visual aid. The purpose of performing the drill regularly is to prevent progressive myopia which is just as important as treating the existing myopia.”
It does not alter corneal curvature:
“Unlike other intrusive methods for correcting nearsightedness on the market, the curvature of the cornea will not be altered. Do not confuse it with present day orthokeratology (which is Latin for correcting the cornea), or “ortho K”, as it is sometimes called in optical parlance. It attempts to correct your refractive error by “flattening” out the cornea with a very “flat” contact lens while you sleep without attending to the myopic shape of the lens of your eye or the eyeball. But ortho C does not “flatten” out the curvature of the cornea; its curvature does not change, and this can be verified by taking another K reading (or keratometer reading) after your vision improves.”
How do you think, what is responsible for doing so?
Is it really the process descibed at the main page?