What is LASIK?
How well you see depends on the shape of your cornea, which is the eye’s clear covering. Generally speaking, in nearsighted people, the cornea is too curved. In farsighted people, the cornea is too flat. People with astigmatism have an oval-shaped cornea. LASIK works by gently and precisely reshaping the cornea with a cool beam from a laser so that it can focus light correctly on the retina. Specifically, LASIK flattens the cornea in the treatment of nearsightedness, steepens the cornea in the treatment of farsightedness, and rounds out the cornea in the treatment of astigmatism. With each pulse the laser resculpts 39-millionths of an inch in a tiny fraction of a second. LASIK, or LASer in-situ keratomileusis, is approved by the FDA for the treatment of nearsightedness, farsightedness, and astigmatism. More than four million people have had this miraculous procedure in the United States alone and more than 13 million worldwide. Laser eye surgery helps people live more active and indepe
LASIK, an acronym for Laser-Assisted in Situ Keratomileusis, is a form of refractive laser eye surgery procedure performed by ophthalmologists intended for correcting myopia, hyperopia, and astigmatism. The procedure is usually a preferred alternative to photorefractive keratectomy, PRK, as it requires less time for full recovery, and the patient experiences less pain overall. Many patients choose LASIK as an alternative to wearing corrective glasses or contact lenses. Lasik is a method of reshaping the external surface of the eye (the cornea) to correct low, moderate and high degrees of near-sightedness, astigmatism and far-sightedness. The complete eye assessment is required to check the patient’s suitability for Lasik. Tests include refraction, contrast sensitivity, pupil size, pupil reaction, retinal examination, tonometry and pachymetry. Other specialised treatments under the Wavefront technology include the aberrometry, topolyzer measurements, topography and tests for dry eye amo
Lasik is a refractive procedure designed to reduce or eliminate your dependency on glasses or contact lenses. The procedure involves first making a corneal flap and then performing laser ablation to change the shape of the cornea. The flap is then repositioned. This procedure has a relatively quick recovery time.
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 is 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
A. LASIK is a combination of automated lamellar keratoplasty (ALK) using a microkeratome (FDA approved) to create a “flap” and the excimer laser (FDA approved) to reshape the cornea (“zap”). •LASIK is the most commonly performed procedure world wide. Many surgeons perform LASIK. This procedure will be discussed at length during the doctor’s visit.
