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Houston Eye Associates - Kingwood
22659 Highway 59 North, Suite 100
Kingwood, TX 77339

Houston Eye Associates - Houston
2855 Gramercy St
Houston, TX 770259

LASIK Technology

Contoura Vision

Contoura is a topography-guided method of LASIK. By using a Topolyzer which maps the unique topography of the surface of the cornea, sampling approximately 22,000 points. This creates a highly detailed scan showing microscopic peaks and valleys that can be smoothed out by the advance laser system. This mapping information from Contoura is then integrated with the EX500 excimer laser to smooth out any irregularities on your cornea.

Contoura Vision

Contoura Vision map

Alcon Wavelight EX500 Excimer LaserAlcon Wavelight EX500 Excimer Laser

The Wavelight EX500 Excimer Laser by Alcon is considered to be the most advanced and quickest excimer laser available in the United States. Alcon has built this new technology to deliver accurate refractive laser treatments, making the Wavelight EX500 today’s leading laser in the industry.

Benefits of the Wavelight EX500 Excimer Laser

  • Precision– Designed to deliver fast ablation times with superb outcomes, this modernized technology helps to reduce the possible risks of flap shrinkage, eye movement sensitivity, fixation fatigue, and stromal dehydration of the cornea.
  • Treatment Options– The laser is customized for each unique eye, fixating on pupil centration and corneal centration.  The Wavelight EX500 contains a powerful multi-dimensional eye tracker which assists in the accuracy of the incisions and corneal flap. This option allows for different treatment variations depending on the uniqueness of each patient’s eye.
  • Sharper Vision– With an optimized shot distribution, the laser sustains a high pulse frequency which reduces halos and glare. This technique allows for clearer vision during night time driving and sunny days.


Minimally invasive surgery – With ReLEx SMILE, a lenticule and a small incision of < 6 mm is created inside the cornea. The preservation of the upper corneal layers and the possibility for fewer transected nerves may preserve biomechanical stability and reduce the incidence of dry eyes.

Single step – With ZEISS ReLEx SMILE, the entire correction is performed as a single-step: one laser, one treatment plan, and one laser process.

All-Femto – Performed on a VisuMax® femtosecond laser, high precision, proven outcomes, predictability and ease of use are what ReLEx SMILE stands for.