LASIK Surgery :: LASIK Surgery Essays

Seeing well without contact lenses and supply is the dream of millions of Americans and modern medical science has enabled that dream to come true (Caster, 8). Since first-class honours degree 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 wearing glasses and contacts, but this has limited many important aspects of her life, including sports. She then heard of a laser eye surgery that supposedly, helped to correct a persons vision by means of lasers. She immediately signed up for the procedure and ever since that day, she has not worn glasses or contacts. Dede is just one of the eighter from Decatur 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 collision as it has received oftentimes media coverage and many praises however, not that many people know what LASIK is, what the advantages and disadvantages are, and most importantly if LASIK is right for them (Buratto, 1). LASIK is basically a emblem of laser surgery which can help correct nearsightedness (myopia), which is the inability to see distant objects, farsightnedness (hyperopia), which is the inability to see close, and astigmatism, the inability to focus light waves evenly. LASIK has bighearted 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 tv camera because it works by focusing light waves that pass through it. Light rays that enter the eye must first pass through the most outside layer of the eye called the cornea. The cornea performs 2/3 of the focusing process, the remainder of is then completed by the crystalline lens which further focuses the light on the retina. This requires essential pre cision in that the focused light must fall exactly at the level of the retina (Gallo, 126). The retina is a nerve tissue 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 optic nerve. Just as a camera cannot produce clear photographs of the image 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.