Orthokeratology
Correct your vision while you sleep.
An innovative and safe alternative to enjoy every day without glasses or contact lenses. Ideal for active people and children with progressive myopia.
What is keratology?
Orthokeratology, or ortho-k, is an ophthalmic treatment based on the use of contact lenses designed to temporarily reshape the cornea while you sleep.
Once you wake up each day, the cornea of your eye will temporarily maintain its new shape, which in turn enables clear vision during the day without having to wear glasses or conventional contact lenses.

How does it work?
Customised night lenses
The contact lenses are rigid and gas permeable, and can be customised for each patient.
Gentle correction of the cornea
These lenses apply gentle pressure to the cornea, modifying its curvature to correct refractive errors such as myopia, hyperopia and astigmatism.
Clear vision
When you remove your lenses in the morning, your cornea will retain its new shape for a while, giving you clear vision.
Reversible effect
If you discontinue treatment, the cornea of your eye will gradually return to its original shape.
Maintenance of Ortho-K lenses
Daily cleaning
It is vital that you clean and disinfect your lenses every day to remove any deposits and microorganisms.
Regular replacement
Ortho-K lenses must be replaced regularly to ensure good eye health.
Regular visits to the optometrist
You need to visit your optometrist regularly to ensure that your lenses are working properly.
Frequently asked questions
Who should undergo orthokeratology?
This treatment is suitable for people with myopia from 0.5 dioptres, hyperopia, astigmatism, as well as presbyopia from 0.75.
How long does the effect of Ortho K last?
Depending on the degree of myopia to be reduced, the effects of the treatment last between 12 and 14 uninterrupted hours.