Contact Lenses and OrthoK
Orthokeratology or ‘OrthoK’ is the use of contact lenses to reshape the highly elastic cornea (front surface of the eyes). OrthoK reduces levels of myopia and astigmatism through a flattening effect, improving vision during the day.
The lenses are worn at night whilst sleeping and removed in the morning for improved vision during the day. The effect generally lasts for the waking hours (~16hrs) at which point the lenses are inserted again before sleeping. Through the continuation of this routine, seamless clear vision can be maintained. Safety is paramount with any contact lens, and orthokeratology lenses are made from the safest and highest oxygen permeable materials. These materials are specifically chosen to maximise ocular health.
The Orthokeratology patient, once successfully fitted, is then free from wearing spectacles or conventional contact lenses during the day. Consequently, OrthoK improves lifestyle at the same time as vision. It is an ideal solution for those who are sensitive to air conditioning with regular daytime contact lenses and also those who wish to play sport freely.
Orthokeratology is ideal for those with mild to moderate myopia (with / without mild astigmatism). Because the corneal reshaping effect is temporary, there is little risk involved. You can stop wearing the lenses at any time in favor of glasses or regular contacts.
Children and young adults who do not want to wear glasses but are too young for LASIK or do not suit refractive surgery for reasons such as dry eye are ideal candidates for ortho-k. Ortho-k is also suitable for those who are involved in contact sports or work in a dusty environment & therefore unable to wear contact lenses.
David has seen great success in utilising OrthoK lenses with patients suffering from myopia as part of his myopia control clinic. OrthoK lenses have proven successful in slowing down or even stopping myopic progression entirely.