Reated to contacts

Corneal Topography

Corneal topography is a special photography technique that maps the surface of your cornea. Your cornea is the clear, front window of the eye. With a topography scan, a doctor can find distortions in the curvature of the cornea.

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Ortho-K Lenses

Are you looking for a way to correct your nearsightedness without surgery or having to worry about contact lenses and glasses in your day-to-day life?

Corneal reshaping therapy (CRT or ortho-K)

Ortho-K lenses are specially designed gas permeable lenses that help to slow the progression of myopia in children and temporarily reverse myopia or astigmatism in adults.

The lenses are worn overnight and work to gently reshape the cornea while you sleep, in the morning the eyes are the correct shape to provide clear vision without needing to use your glasses.

Ortho-K is a great option to:

  • Slow the progression of myopia in children
  • Correct refractive errors such as myopia and astigmatism in adults
  • Help people who are not candidates for vision correction surgery
ortho-k lenses work like this to reshape the cornea

How do ortho-k lenses work?

You wear ortho-K lenses while you sleep. The lenses are rigid and apply gentle pressure onto the cornea. The shape of your cornea affects how light enters your eye, and through reshaping your cornea, vision can be corrected.

Ortho-k lenses are custom fit to your eyes to address your vision concerns. With regular wear, you won’t need to wear glasses or contacts to correct your vision during the day.

Is the treatment permanent?

Unfortunately, the treatment is not a permanent solution. The effects are temporary and are generally worn every night to maintain clear vision during the day.

What diagnosis can be treated with ortho-k lenses?

Ortho-k was originally developed to treat myopia, but can also treat a variety of vision problems, including:

Myopia control
General myopia (nearsightedness)
Hyperopia (farsightedness)
Astigmatism
Presbyopia

Research on Ortho-K Lenses:

The longitudinal orthokeratology research in children (LORIC) in Hong Kong: a pilot study on refractive changes and myopic control

The role of bifocal and contact lenses in myopia control