Laser-Assisted In Situ Keratomileusis

Dr. Senekal performs Lasik using the combination of the Zeiss Femtosecond Laser and Excimer Laser, two of the most advanced corneal refractive lasers available. Unlike other Laser centres that offer Lasik at discounted prices, Dr. Senekal never uses a blade or microkeratome to create the flap. Using the Visumax Femtosecond laser for creating the flap significantly increases the safety, accuracy, and precision of LASIK.

The MEL90 Excimer Laser can accurately and with great precision correct high degrees of Myopia, Astigmatism and Hyperopia.

The Following Refractive Errors Can Be Corrected (Exceptions May Apply):
Myopia (Nearsightedness): Up to -10.00 diopters
Hypermetropia (Farsightedness): Up to +6.00 diopters
Astigmatism: Up to 5.00 diopters

During LASIK surgery, a flap is created in the outer layers of the cornea by the Visumax Femtosecond laser. The flap is then lifted and an Excimer Laser is used to reshape the exposed middle layer of the cornea, called the stroma. This circular flap remains attached to the cornea by a small hinge of tissue. The hinge enables the flap to be lifted away from the central cornea. A laser can then be used to reshape the exposed mid-layer of the cornea.

The Visumax Femtosecond laser is used to create a flap using multiple short pulses. These pulses are so close together they create an almost complete separation of the flap from the rest of the cornea, but they do not actually lift the flap. If the flap pattern is judged to be complete and satisfactory, a delicate separation of the flap is performed with a few gentle manipulations using a surgical instrument.

While creating the flap, the eye is held gently with a suction cup, which exerts some pressure and causes the vision to blurr momentarily. At no point during the procedure is vision lost or blacked out.

The surgeon then positions the patient’s eye under the Excimer laser which is programmed to remove microscopic layers of tissue from the internal part of the cornea under the flap. The cool laser beam vaporizes tissue, without burning or cutting. This tissue does not completely replace itself after it is removed. Since the excimer laser light is created at a specified wavelength (193nm) that does not pass through the cornea, no other part of the eye is affected.

After the cornea has been reshaped, the surgeon precisely repositions the flap in its original position. The cornea has amazing natural bonding qualities which holds the flap in place. Within a few minutes, the flap adheres to the underlying tissue. The edges of the flap heal over in 12 to 48 hours, with the entire flap gaining adhesive strength as it continues to heal in the following weeks and months.

For each eye, the laser treatment time is usually less than thirty seconds, and the whole procedure takes around 10-15 minutes for both eyes.

Staying ahead of COVID-19

We are going above and beyond the standard infection prevention and control measures to protect you and to create the safest possible environment for you. Your safety is our priority, and you will never encounter overcrowded waiting rooms or treatment areas at our new surgical facility. We never compromise on quality or safety.