What is OrthoK

OrthoK (Orthokeratology) also known as Corneal Refractive Therapy (CRT) is a non-surgical form of vision correction.

OrthoK is an ideal alternative to refractive surgery (Laser or Lasik Surgery) and for those who prefer not to wear contact lenses or corrective eyewear during the day.

OrthoK is the design and fitting of custom manufactured contact lenses for patients to wear whilst they sleep. It involves wearing specially shaped rigid contact lenses whilst sleeping at night, to precisely re-shape the cornea in a controlled fashion. Upon waking, the contact lenses are removed, and the reshaped cornea allows sharp vision for the whole day (often for two days), without having to rely on spectacles or contact lenses.

By reshaping the cornea, OrthoK contact lenses re-focus the light rays, making them focus properly on the retina as standard contact lenses and corrective eyewear do.

OrthoK is a non-invasive procedure and completely reversible. If the OrthoK contact lenses are not worn for several nights, the elastic cornea will simply revert back to its original shape.

OrthoK has been receiving worldwide acknowledgement due to a growing body of evidence proving that OrthoK can in fact slow down and even halt the progression of short-sightedness (myopia) in children during the crucial growing years. It is, however also, suitable for long-sightedness (hyperopia) and presbyopia (age-related near sight loss).