The Ortho K process

Ortho K begins with a scan of eye curvatures.

The corneal shape of each person is unique.  Even the shape of a person’s right and left corneas is different. Since no two corneas are exactly alike it is vital to have accurate corneal topographical information to design the Orthokeratology lens. The process of being fitted for Ortho K begins with a comprehensive eye examination, including scanning of eye curvatures with Digital Corneal Topography

The Optometrist calculates the required Ortho K lens design and diagnostic lens, and instructs you on lens handling and care.

You sleep in the diagnostic lens overnight. Your eyes are re-scanned the next morning to measure the imprint that has been generated. This step is repeated if necessary with the same or different lenses.

Following analysis of the digital corneal topographic scan, your Ortho K lenses are individually designed for you.

You return for collection of the lenses, and regular scheduled aftercare examinations.

The lenses are worn every night for a specified number of nights. Once the vision change is stabilized, the wearing routine required to maintain the desired effect is tailored to you. Many Ortho K patients wear their lenses three nights a week; some must wear them every night to maintain adequate vision throughout the day.

Common lens complications include:

    1. Mild lens binding on awakening (We teach you how to dislodge a bound lens safely and easily)
    1. Mild superficial corneal staining, which will normally heal after a few hours
    1. Solution allergy or intolerance, requiring change to another lens care system
    1. Fluctuating vision on certain days after myopia reduction, for example due to your lens not centering properly when you wore them the night before.

Complications are kept to a minimum when you follow the Optometrist’s instructions properly.

During Ortho-K treatment, before complete vision correction, you may need to wear temporary spectacles or contact lenses to correct any remaining refractive error during the day.

When the treatment is completed, you will need to continue to wear the final pair of Ortho-K lenses to maintain the myopia reduction effect.

Regular aftercare consultations, three to six monthly, are still necessary to ensure the health of your eyes. It is important that you come for these regular examinations even if you are happy with your vision.

Severe complications in contact lens wear without early detection or intervention include corneal infection and possible permanent vision loss.