What is LASIK?
Are you searching for a LASIK surgeon in the greater Alexandria area?
LASIK stands for Laser-Assisted In Situ Keratomileusis and is a laser vision correction procedure that permanently changes the shape of the cornea, or the clear covering of the front of the eye, by using an excimer laser. A mechanical microkeratome (a blade device) or a laser keratome (a laser device) is used to cut a flap in the cornea. A hinge is left at one end of this flap. The flap is folded back revealing the stroma, the middle section of the cornea. Pulses from a computer-controlled laser vaporize a portion of the stroma and the flap is replaced.
The Eye and Vision Errors
The cornea is a part of the eye that helps focus light to create an image on the retina. It works in much the same way that the lens of a camera focuses light to create an image on film. The bending and focusing of light are also known as refraction. Usually, the shape of the cornea and the eye are not perfect and the image on the retina is out-of-focus (blurred) or distorted. These imperfections in the focusing power of the eye are called refractive errors. There are three primary types of refractive errors: myopia, hyperopia, and astigmatism. Persons with myopia, or nearsightedness, have more difficulty seeing distant objects as clearly as near objects. Persons with hyperopia, or farsightedness, have more difficulty seeing near objects as clearly as distant objects. Astigmatism is a distortion of the image on the retina caused by irregularities in the cornea or lens of the eye. Combinations of myopia and astigmatism or hyperopia and astigmatism are common. Glasses or contact lenses are designed to compensate for the eye’s imperfections. Surgical procedures aimed at improving the focusing power of the eye are called refractive surgery. In LASIK surgery, precise and controlled removal of corneal tissue by a special laser reshapes the cornea changing it’s focusing power.
How is LASIK Performed?
During LASIK, a thin layer of corneal tissue is created with either a microkeratome or laser and folded back from the surface of the cornea. After the laser reshapes the cornea, the tissue is folded back into place, where it bonds quickly. At the Silk Vision and Surgical Center, we use a state-of-the-art, WaveLight Allegretto Wave Eye-Q laser that produces an exceptionally smooth treatment. This three-minute procedure requires no needles and no stitches.
LASIK can be used to treat nearsightedness, farsightedness, and astigmatism. Healing for most patients is so fast that vision can improve within hours of the procedure, and many patients return to work the next day.
Take our FREE online LASIK Self -Evaluation Test available at Silk Vision and Surgical Center serving the people of Alexandria, Annandale, Manassas, Arlington and more.