Laser Assisted Insitu Keratomileusis LASIK (Lasik Treatment) is a procedure used to correct or reduce moderate to high levels of myopia. In LASIK, the surgeon creates a flap in the cornea using a surgical instrument called a microkeratome. The surgeon uses the laser to remove a micro-thin layer of tissue from the exposed corneal surface. The flap is replaced without the need for sutures.
Who can undergo LASIK Treatment?
Persons above 18 years of age with stable refraction for at least 6 months & who have no other eye disease.
What is so special about Lasik Treatment?
The Zyoptix Laser work station is a wave front Lasik. It involves tailoring the excimer laser treatment to very small visual irregularities. These are called higher order aberrations that are specific to each person. Custom wave front Lasik technology takes information from corneal topography maps, and from an instrument called an aberrometer (also called wave front analyzer) and feeds it directly into the laser.
Wave front Lasik surgery will correct your refractive error and will also correct the very small optical irregularities that are found not only on the cornea, but also through the entire eye. These advances in technology mean that every patient can be treated as a special case. This technology helps the patient achieve, what is called as super vision.
LASIK treatment is broadly divided into steps and performed while the patient reclines under a surgical device called an excimer laser.
Flap creation: The first step involves placing a suction ring on the eye to flatten out the cornea to keep the eye from moving. From the time the suction ring is put on the eye until it is removed, vision appears dim or goes black. Once the cornea is flattened, a hinged flap of corneal tissue is created using an automated microsurgical device, either a laser or blade. A flap is created by cutting through the corneal epithelium and Bowman's layer with a metal blade, or a femtosecond laser. The flap is then folded back, revealing the stroma, the middle section of the cornea.
Laser Remodeling: The second step of the procedure uses an excimer laser (193 nm) to remodel the corneal stroma without damaging the adjacent stroma. The layers of tissue removed are tens of micrometres thick. Once the flap is lifted, the patient's vision becomes blurry which can lead to mild disorientation. The excimer laser uses an eye tracking system that follows the patient's eye position up to 4,000 times per second, redirecting laser pulses for precise placement within the treatment zone.
Repositioning of the flap: After the laser has reshaped the stromal layer, the LASIK flap is carefully repositioned over the treatment area and checked for the presence of air bubbles, debris, and proper fit on the eye and kept in position until complete healing is achieved.
Success Rate and Post-Procedure:
LASIK laser eye surgery has many benefits. The one that tops the list is it corrects the vision nearly immediately with almost a 96% success rate, and that too without the use of any bandages or stitches. This is followed by another big benefit that of a dramatic reduction in eyeglass or contact lens dependence and many patients no longer need them at all. And even years after LASIK, adjustments can be made to further correct vision if vision changes while you age.