100% Vision : Correcting refractive problems Through Laser Surgery in Sherbrooke

What is refraction? 

At 100% Vision, before determining if your refractive problem can be corrected through laser surgery in Sherbrooke, it is important to understand the problem. Refraction refers to the way in which an image is captured by the eye. There are three factors that determine refraction:

  • The curvature of the cornea
  • The power of the lens
  • The length of the eye

If these three elements are perfectly structured, the image converges on the retina, producing clear vision. However, if one or more of the structures are not perfect, the result is called a refractive problem.

Correcting refractive problems

1. Corrective glasses
2. Contact lenses
3. Laser surgery techniques


You will be able to choose between the laser eye surgery Lasik, the tailor-made Lasik or the Zyoptix technology with A.C.E. (iris recognition). This technique is very popular because the recovery time after eye surgery is very short and the procedure is practically painless. It also reduces the need for corrective glasses. However, this technique can sometimes cause a halo effect around bright lights at night. This drawback occurs because the pupil dilates over both the treated and untreated part of the cornea. In some cases, to make sure that halos are avoided if the cornea is too thin or if the level of myopia and hyperopia is too high, this technology can’t be used and a tailor-made Lasik has to be chosen. The Zyoptix technology can also be an option.

Lasik is a tailor-made laser surgery. It is similar to regular Lasik but offers a wide advantage if the cornea is too thin or if the level of myopia and hyperopia is too high. Also, that technology will also be recommended if the black of the eye is really big in the dark in order to reduce the halos around lights at night.

There is now a new technology called Zyoptix surgery (with A.C.E.). This laser surgery is similar to Lasik, has all the benefits offers by the tailor-made Lasik surgery, but is more advantageous overall as it features the iris recognition technology. It allows a larger treatment zone and follows the movement of the eye during the intervention. It is very much recommended for astigmatic between 1.5 to 6.5 dioptres. This type of laser vision correction, which is customized for each eye, also treats imperfections (aberrations) that are present in the eye, which offer a better quality of vision after the intervention.

Finally, since the beginning of 2007, it has been possible to correct vision with a much safer, laser-only bladeless procedure called Intralase or iLasik.

Contact the 100% Vision clinic in Sherbrooke today to make an appointment.

Download Info-vision PDF (French only)

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