Orthokeratology (ortho-k) is the process of wearing a customized gas permeable contact lens only at night (while sleeping) to gently reshape the front surface of the eye, known as the cornea. In the morning, after the user removes the ortho-k lenses, they are able to see clearly for the day.
With very early orthokeratology dating back to the 1960’s this treatment has been given various names over the years:
With advances in technology most ortho-k contact lens users today find they are able to see properly without glasses or contact lenses for one to two days after sleeping with the ortho-k lenses.
The fitting of Ortho-K lenses is usually prescribed for the following:
Ortho-K is an excellent option for children who are experiencing a progression of myopia/nearsightedness. Adults and children are good candidates for ortho-k lenses if they:
The result of orthokeratology will depend on your prescription, age, and treatment goals. Younger eyes mould faster, therefore children and teenagers can often achieve results in just a couple nights. Adults with higher prescriptions will typically take longer.
In many patients, orthokeratology can temporarily correct nearsightedness of up to -6.00 diopters of myopia. In order to maintain the results, you will need to continue using ortho-k lenses. When you stop wearing ortho-k lenses at night your vision will return to its original baseline.
During your initial orthokeratology evaluation, our Unionville Optometrists will discuss the potential outcome of your specific treatment plan.
Patients will have a full eye exam with one of our doctors as well as imaging and measurement of corneal curvature to establish candidacy. Once confirmed, these diagnostic tests combined with a topographical map of the ocular surface, will generate custom ortho-k lenses specific to each patient.
Typically, patients will return for a second visit and spend time with our staff learning how to insert and remove their ortho-k lenses. This typically takes two to three 20-minute sessions and/or until patients are comfortable handling the Ortho-k lenses themselves.
Patients will be seen for follow-up appointments where refraction and imaging takes place to ensure optimal fit and vision.
Our Unionville Optometrists can evaluate your eye health and determine if ortho-k soft contact lenses are right for you.
You can also contact us online.