FAQs on Specialist Eye Treatments.

Q. What results can you expect?
A. Eye care professionals usually aim for 20/20 vision, but 20/40 vision is typically considered acceptable. In the FDA clinical study for approval of CRT, 93% of patients achieved 20/32 vision or better, and 67% achieved 20/20 or better.

Q. What to expect when you begin?
A. The Optometrist will begin by measuring the curvatures of your corneas using an instrument called a corneal topographer. The doctor might order lenses for you.

You may need a series of temporary lenses to see properly until you reach the desired prescription.

Q. How long does it take?
A. Ortho-k can reshape two or three diopters of myopia in two weeks or less, says Dr. Rah.

During the time your eyes are being reshaped, you can experience side effects. Once your eyes reach the desired prescription, you will need to wear lenses when you sleep or during part of the day to maintain your prescription. Discontinuing lens wear altogether allows your corneas to gradually regress to their original shape or close to it.

Q. Is Ortho-k comfortable?
A. Some people have comfort issues with RGP contact lenses, which are used for Ortho-k. With GPs, a sensation of lens awareness can result from interaction of the eyelid with the edge of the lens during blinking.