Vision Correction
Orthokeratology
What is Accelerated Orthokeratology?
Accelerated Orthokeratology(AOK) is a non-surgical treatment procedure to correct myopia(near-sightedness) with a night-wear contact lens mold. Although the mold feels like a regular contact lens, it also gently and quickly reshapes the front surface of the eye known as the cornea. The improved corneal shape means that upon removing the contact lens you will enjoy clear natural vision.
How does AOK work?
A microscopic layer of tears separates the back surface of the cornea. In some areas this layer is approximately 1/10 the width of a human hair! After precise corneal surface measurements are taken, a contact lens can be designed to vary the thickness of the tear layer in a controlled manner. As a result of the tear layer changes, the cornea begins to reshape within hours!
The contact lens molds are worn only while asleep and substantial changes will be noticed in one night. Most visual changes occur rapidly within the first two to seven nights. Stabilization of the new corneal shape occurs over the next two to three months. After treatment is complete, the AOK lenses are worn on a maintenance basis to retain the corneal shape.