How does Orthokeratology work

Orthokeratology is a non-surgical and non-invasive technique for the reversible reduction of myopia, astigmatism, hyperopia and presbyopia, using special contact lenses characterised by the so-called "reverse geometry".
These are rigid gas permeable lenses, designed to allow a reshaping of the corneal profile and to remain well centred on the eye even with the eyelid closed.
The lenses that are used for orthokeratology are very sophisticated lenses, which allow the necessary oxygen to reach the eye even when the eyelid is closed.You will see as well while wearing the lens as if you were wearing a conventional corrective lens. When you remove it you will continue to see well even with the naked eye

Night lenses

Limitations due to vision defects are often an obstacle to normal activities.

The use of corrective tools such as glasses or contact lenses can be an impediment, both at work and during the study or during our free time.Orthokeratology lenses correct your visual defect (myopia, astigmatism, hyperopia, presbyopia) while you sleep, allowing you to see clearly with the naked eye, without the aid of glasses or contact lenses.

 Unlike normal contact lenses, Orthokeratology lenses are not worn during the day, but are worn before going to sleep and removed in the morning. This allows you to see well with the naked eye, without the need of using contact lenses or glasses for the rest of the day.

If you decide to stop wearing Orthokeratology lenses, in a short period of time your eye will return to its initial conditions, thanks to the reversibility of orthokeratology.

Not only myopia

At present, orthokeratology can correct many vision defects. The best results can be obtained for nearsightedness up to 6 diopters; in addition, good results are also achieved for astigmatism, presbyopia and hyperopia.

Only after a specialist visit and some preliminary tests will your trusted center confirm whether you are suitable for the use of orthokeratology lenses.

Orthokeratology and young people

Recent and authoritative scientific studies show that orthokeratology is a treatment, not only capable of giving independence from glasses and contact lenses throughout the day, but it is also an effective method for slowing down the progression of myopia in childhood. All the most recent studies demonstrate a minor myopic progression in boys treated with orthokeratology, compared to their peers corrected with traditional glasses or contact lenses. These results, presented for the first time in 2005 by Pauline Choo et al. of Hong Kong, were then confirmed by Walline et al. in 2009 in the United States and in 2011 by Kakita et al. in Japan and by Santodomingo et al. in Europe. Furthermore, with orthokeratology we can positively influence, with a clear natural vision, the crucial phases of character formation of young adolescents who open up to the world, opposing the indolence, sedentary lifestyle and introversion generated by progressive myopia. The use of contact lenses for orthokeratology is no more risky in children than in adults, if all hygiene rules are followed and high quality products are used. For these reasons, in the absence of contraindications, it is advisable not to postpone the use of orthokeratology until the vision defect has stabilised, but rather an early application is advisable, while the myopia is in its worsening phase.

Ottica Ranieri is a centre specialised in the application of contact lenses for orthokeratology. For more information, call us on info@otticaranieri.com

It is essential to underline how only the co-management of the patient by the ophthalmologist with the contact specialist, combined with strict compliance with the calendar of check-ups (by the ophthalmologist and the contact specialist) and the contact lens maintenance rules, can reduce the risk to contract infections or mechanical complications, even serious, of the ocular surface.