Ortho-K, or OrthoKeratology,  is a process of correcting the sight using a rigid contact lens which is highly permeable to oxygen. It is worn overnight, during sleep, and corrects the vision to give you the freedom to spend the day without the need for contact lenses or spectacles!   They are available to patients with the following levels of short sightedness:

A spherical spectacle prescription of -0.75D up to -4.50D
Astigmatism of up to -1.50D

If you are unsure about your prescription or have any questions about Ortho-K, please don't hesitate to contact one of our friendly members of staff for more information.