Dr Mousa


Dr Mousa has been practicing Orthokeratology for 15 years and has treated over 80 patients.

Wouldn't it be great if you could correct your nearsightedness and reduce your dependence on glasses or contact lenses — without having to undergo eye surgery?

It might sound far-fetched, but it's a reality for many people. It's called orthokeratology, or ortho-k, and it is available throughout the country.

Orthokeratology is not new: It has been performed for decades by eye doctors who specialize in contact lens fitting. Interest in orthokeratology has increased in recent years due to advances in Orthokeratology technology and a desire among many people for a non-surgical alternative to LASIK and other refractive eye surgery to correct their nearsightedness.

Orthokeratology is for people of any age who are nearsighted.

Orthokeratology or Ortho-K is a non-surgical process which reshapes the cornea of the eye using contact lenses to reduce refractive errors of nearsightedness, hyperopia and astigmatism. Dr. Mousa has been performing Orthokeratology or Ortho-K in toronto for over a decade

Orthokeratology While You Sleep

In June 2002, the FDA granted approval to Paragon Vision Sciences for overnight corneal reshaping called Corneal Refractive Therapy (CRT). Approval of overnight wear of corneal reshaping lenses has made Orthokeratology much more convenient and has led to a recent surge in its popularity. With overnight Orthokeratology, all corneal reshaping takes place while you sleep, and "retainer" contact lenses no longer have to be worn during the day to preserve good vision.

Currently, two brands have FDA approval for overnight corneal reshaping: Paragon CRT (Paragon Vision Sciences), and Vision Shaping Treatment (Bausch + Lomb). Both are fit only by eye care practitioners who have been through each company's certification procedure.

Sometimes, eye care professionals use other brands of extended wear GP contact lenses for overnight Orthokeratology as an "off-label" use at the doctor's discretion

How Orthokeratology Works

With Orthokeratology Dr. Mousa designs and fits a special gas permeable contact lens that gently reshape the clear front surface of the eye (cornea), so you can see clearly even after you remove the lenses.

Myopia (nearsightedness) is caused by the cornea being too steep. Orthokeratology, like LASIK, reshapes the cornea so light entering the eye is more accurately focused on the retina.

Unlike LASIK, however, the corneal reshaping effect of orthokeratology is temporary — generally enough to eliminate your need for glasses or contacts for a day or so. Then you have to wear the Orthokeratology lenses again to maintain the proper corneal shape.

Ortho-k and Corneal Refractive Therapy: Overnight Contacts to Correct Myopia