Ortho-K, Orthokeratology and Overnight Vision Correction (OVC)

Ortho-K which is also known as orthokeratology or overnight vision correction (OVC) is a treatment with a specially designed contact lens that corrects your prescription with overnight wear. The custom made contact lens is worn overnight and removed in the morning and amazingly you will be able to see perfectly without your spectacles or contact lenses!

Click on the text here to view our video animation explaining Ortho-K or Overnight Vision Correction.

Ortho-K contact lenses are designed in a unique way and made with a high oxygen permeable material designed for sleeping in at night. When worn during the night these lenses apply a controlled shape to the ‘window’ at the front of the eye (the cornea), eliminating your short sightedness. This effect stays strong enough for you to function the entire day without spectacles or contact lenses.

Ortho-K has the following benefits:

  • Freedom from contact lenses or glasses during the day

  • An alternative to laser vision correction without the need for surgery and fully reversible

  • Eliminates problems with dryness and itchyness when contact lenses are worn during the day

  • Allows you to perform sports activities freely where contact lenses are not ideal e.g swimming

Ortho-K has been a proven and effective treatment for vision correction for over 10 years. It is a treatment which can also be used to corrected short sight sightedness in children and recent research shows that it may slow down the progression of myopia in children. Click here for more details.

If you would like more information or are interested in Ortho-K, please contact our Harrow or Northwood Practice.

Ortho-k / Overnight Vision Correction Leaflet - Click here

Myopia Control Leaflet - Click here