In astigmatism, the eye is oval like a football, and not spherical. The image is formed at two different points inside the eye. This means that images of different orientations are focused at different parts of the eye and that the image on the retina is blurred.
Many patients have astigmatism combined with myopia or hyperopia. The computer of the High Definition Custom Laser (Schwind Amaris or Zeiss MEL-80) permits the correction of both defects during the same treatment session.
✓ Customized Lasik with the Schwind Amaris laser
The Schwind Amaris is a latest generation laser approved by Health Canada in 2012. Clinique Laservue was the first in North America to acquire this technology. This laser has the most sophisticated eye tracker on the market, which follows your eye in "6-Dimensions" (see video below), thus assuring centration of the treatment even in the presence of microscopic eye movements during treatment. It is ultra-fast (500 pulses per second) and ultra-precise, and the vast majority of our patients achieve 20/20 vision the very next day.
✓ - PRK (photo-refractive keratectomy)
PRK is an older technique than Lasik. Betwen 1992 and 1995, the Laservue surgeons performed over 4000 PRKs. The main disadvantage is that the outer skin of the eye must be removed before applying the excimer laser. The healing is thus much slower. We will still perform PRK in patients with corneas too thin for Lasik.
✓ "Phakic" Intra-Ocular Lens
"Refractive" intra-ocular lens implantation is performed when excimer laser surgery is not possible. The intra-ocular lens is placed near the natural lens of the eye (phakic implant), or replaces it. .