LASIK Surgery :: LASIK Surgery Essays

Seeing well without contact lenses and eyeglasses is the breathing in of millions of Americans and modern medical science has enabled that dream to come true (Caster, 8). Since outgrowth grade, Dede Head, a 30-year-old fitness trainer in North Carolina, has worn glasses to correct sever nearsightedness and astigmatism. Over the years she became accustomed to eroding glasses and contacts, but this has limited many important aspects of her life, including sports. She then perceive of a laser eye mental process that supposedly, helped to correct a persons vision by means of lasers. She immediately subscribe up for the subprogram and ever since that day, she has not worn glasses or contacts. Dede is just one of the eight hundred-fifty-thousand people who have undergone a procedure by the name of LASIK or Laser In-Situ Keratomileusis. If surgical procedures were movies, LASIK would be this years box office smash as it has received some(prenominal) media coverage and many praises however, not that many people know what LASIK is, what the advantages and disadvantages argon, and almost(prenominal) importantly if LASIK is right for them (Buratto, 1). LASIK is basically a type of laser surgery which can help correct nearsightedness (myopia), which is the inability to see deep objects, farsightnedness (hyperopia), which is the inability to see close, and astigmatism, the inability to centre crystalise waves evenly. LASIK has grown greatly in the last year, mostly because of 4 reasons it is fast (procedure takes about 5-10 minutes), safe, painless, and the results are almost always prolific. The eye is just like a camera because it works by focusing light waves that pass through it. faint rays that enter the eye must(prenominal) first pass through the most outer layer of the eye called the cornea. The cornea performs 2/3 of the focusing process, the correspondence of is then completed by the crystalline lens which further focuses the light on the retina. This requires extreme precision in that the focused light must fall exactly at the level of the retina (Gallo, 126). The retina is a nerve create from raw material that carpets the inner surface of the eye, much like wallpaper covers all aspects of a wall. The retina converts the light into electrical signals, which are transmitted to the brain by the centre nerve. Just as a camera cannot produce clear photographs of the motion picture if the incoming light is not focused on the film, we cannot produce a clear vision if the cornea and crystalline lens do not focus the light precisely on the retina.