LASIK Refractive Correction Surgery- How It Works LASIK Refractive Correction Surgery is a process which permanently changes the shape of the Cornea, the clear covering in the front of the eye. The process is affected to improve the vision of a person and also to do away with the necessity of eyeglasses or contact lens.
Before understanding how the LASIC process is done it will be imperative to know a bit about how our eyes work. Our eyes are designed just like a camera and the retina and the lens are two parts of the eyes which refract and bend the light in a way so that they are focused perfectly on the retina from where the images are sent to the brain for analysis and we get the perception of sight. However if there is some anomaly in the shape and the structure of the retina or the lens, we have problems in clear vision, which is corrected with eyeglasses or contact lens. There are three types of common vision anomalies known as short sight, long sight and astigmatism.
Short sightedness or Myopia is an anomaly where the image is focused in front of the retina and therefore the vision is blurred. This anomaly is corrected by the help of divergent lenses which focus the image on the retina and the vision anomaly is corrected.
Long sightedness or Hyperopia is an anomaly where the image is focused behind the retina and therefore the vision is blurred. This anomaly is corrected by the help of convergent lenses which focus the image on the retina and the vision anomaly is corrected.
Astigmatism is a visual defect in which vision is blurred due to the failure of the optics of the eye to focus a point object into a sharp focused image on the retina. Astigmatism is caused due to an irregular or toric curvature of the cornea or lens
LASIK surgery is a process which shapes the curvature of the cornea in such a way so that there is no need for use of eyeglasses or contact lenses and the visual acuity is considerably improved. LASIK uses a excimer laser which literally carves out the cornea so that all the three forms of visual anomaly, Myopia, Hyperopia and Astigmatism are corrected. LASIK involves the creation of a flap of the upper corneal tissue which is then peeled back and the lower corneal tissues are sculptured according to the visual anomaly. Once the reshaping of the cornea is done, the flap is replaced. There is no need for any stitches and the flap will be naturally held in place by the cornea.
LASIK is an OPD process and does not take more than 15 to 30 minutes to be completed. There is no need for any anesthesia other than the use of a local anesthetic. The patient remains conscious though he may be given a mild anxiolytic to keep him calm.
LASIK Surgery is a relatively new process and still necessitates an expert hand to be successfully completed. Dr. Kevin Niksarli is a well-known name in LASIK Surgery and has perfected the process with assiduousness to be christened as the pioneer of Lasik Surgery in modern times.
Dr. Kevin Niksarli is a well-known name in LASIK Surgery and has effectively completed thousands of LASIK procedures with distinction. He was also one of the first pioneers of the procedure and also one of the earliest to perform LASIK Correction surgery for myopia, hyperopia and astigmatism. Dr Kevin Niksarali is also one of the thirteen primary investigators in the breakthrough FDA clinical trial that led to the approval of LASIK surgery in the United States.
Source : http://goarticles.com/article/LASIK-Refractive-Correction-Surgery-How-It-Works/8967463/