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What is Lasik surgery?

I would like to know about LASIK surgery the details and the Complications regarding it since my mother is planning to undergo it.
Asked On : Tue, 19 Jan 2010
Answers:  2 Views:  1422
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  User's Response
LASIK (laser-assisted in situ keratomileusis) is a type of refractive laser eye surgery performed by ophthalmologists for correcting myopia, hyperopia, and astigmatism. The operation is performed by creating a thin flap on the eye, folding it to enable remodeling of the tissue underneath with laser. The flap is repositioned and the eye is left to heal in the postoperative period. Contact lens users should avoid using it for 5-7days prior to the surgery. Low-power lasers, a topographer creates a topographic map of the cornea. This process also detects astigmatism and other irregularities in the shape of the cornea. This helps the surgeon calculates the amount and locations of corneal tissue to be removed during the operation. Lasik is performed in 3 stages 1) Create a flap of corneal tissue. 2) Remodeling of the cornea underneath the flap with laser. 3) The flap is repositioned. Postoperative care would include a) Antibiotics & Anti inflammatory eye drops. b) Darkened pair of shields to protect their eyes from bright lights and protective goggles to prevent rubbing of the eyes when asleep and to reduce dry eyes. c) Moisturize the eyes with preservative free tears. Complications of Lasik surgery would include 1) Surgery induced dry eyes. 2) Over correction or under correction. 3) Visual acuity fluctuation 4) Halos or starbursts around light sources at night 5) Light sensitivity 6) Ghost images or double vision 7) Wrinkles in flap (striae) 8) Debris or growth under flap 9) Induced astigmatism 10) Corneal Ectasia 11) Floaters 12) Epithelium erosion 13) Posterior vitreous detachment 0.36 percent. 14) Macular hole 0.2 percent to 0.3 percent.
Answered: Mon, 1 Feb 2010
Pediatrician Dr. Suryakanta Baraha's  Response
Laser Assisted Stromal In-situ Keratomileusis [LASIK] is a method of re-shaping the external surface of the eye [the cornea] to correct low, moderate and high degrees of nearsightedness, astigmatism and far-sightedness. During the treatment, an instrument called the microkeratome creates a corneal flap to make it a painless procedure. The computerized Excimer laser then uses a cool beam of light to gently reshape the cornea so as to alter its curvature to the desired extent. The flap when replaced on the new corneal curvature allows images to be sharply focused on the retina. The goal is to eliminate or greatly reduce the dependence on glasses or contact lenses
Answered: Wed, 11 May 2011
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