Laser Consultation and Co-management

There are several surgical options available when considering refractive eye surgery to reduce your dependence on eye glasses or contact lenses. Two of the most common types are as follows:

Photo-Refractive Keratectomy (PRK)

With Photo-Refractive Keratectomy (PRK), the outer layer of the cornea, called the epithelium, is gently removed. A laser is used to reshape the cornea. The epithelium regenerates over the treated area within approximately 3-5 days. PRK achieves excellent results, especially for patients who may have a thinner than average cornea. Following healing, the corneal integrity is well maintained and the visual acuity is usually very good. The main drawbacks to PRK are that there is some eye pain or irritation for the first few days after surgery while the epithelium heals, and the prescription may take up to three months to stabilize.

Laser In-Situ Keratomileusis (LASIK)

With LASIK, patients experience faster visual recovery and minimal eye discomfort from the procedure. A tiny blade or laser can be used to create a thin flap of corneal tissue. The flap is folded back and the laser is applied to the exposed inner corneal tissue. The flap is then repositioned, where it bonds tightly without the need for stitches. Rarely, there have been instances where the flap has come dislodged, such as while playing sports.

PRK and LASIK are very quick and accurate surgeries. However, they may, in limited instances, produce visual aberrations in the form of glare or halos under dim lighting conditions and dry eye syndrome.

Whether you are a candidate for Laser depends on many factors:

  • your prescription
  • whether your prescription is stable
  • age and presbyopia
  • thickness of your cornea
  • diseases/disorders that can be a risk to Laser, such as glaucoma or healing disorders
  • dry eyes

At Opsis Eye Care in Markham, we provide complimentary laser consultations which includes measuring the thickness of your cornea, measuring the surface of your cornea (with topography), evaluating the ocular surface, and measuring pupil size. Combined with the results of your regular eye exam, Markham Optometrist Dr. Jessica Nhan will be able to determine whether you are good candidate for refractive surgery and which type of surgery is most appropriate. We will then refer you to one of our partnered laser centers, TLC Laser Eye Centers and Bochner Eye Institute, for further testing.
After the refractive surgery is complete, Dr. Jessica Nhan will also perform appropriate post- surgery follow ups to ensure that there are no problems with healing and that your vision is the clearest it can be. Since your eyes are very important, choosing the right laser center is also very important. We work with TLC and Bochner because we know they have the newest technology and experienced surgeons. Together, we can provide a high standard of care to all of our patients.

Dr. Jessica Nhan, Markham Optometrist, eye exam, eye doctor, contact lenses, downtown markham