LASIK is a type of laser-guided eye surgery intended to correct or lessen issues with sight. LASIK is carried out by ophthalmologists, who are medical physicians specializing in diseases and disorders of the eye. LASIK is ordinarily preferable to photorefractive keratectomy, or PRK, as it is less pain-producing and requires less time for healing. Prior to having LASIK surgery, the patient's corneas are evaluated with a computer controlled scanner and a corneal map is created. This stage of the procedure also discovers astigmatism as well as other peculiarities in the shape of the cornea. The operating surgeon uses this information to find out the location as well as the amount of corneal material to be eliminated during the operation. The operation is performed with the person awake, nevertheless, the person is often given a minor sedative and anesthetic eye drops. The operating surgeon operates the lasers, which make all of the incisions. A flap is carved in the cornea using a blade or a laser. And then, an excimer laser remodels the cornea. The laser vaporizes tissue without creating injury to the eye. Although relatively uncommon, complicating problems can occur with LASIK or other laser or non laser eye surgeries. Some of the more regularly reported complications of LASIK can include: infection, dry or light sensitive eyes, under or over correction, fluctuations in vision, starbursts or halos around lights, double vision, and troubles with the flap produced during the surgery. Although LASIK technology is improving very rapidly, scientists have not ascertained long-term or permanent damage. The process cannot be reversed.

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