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LASIK eye surgery is a corrective eye surgery designed to correct the eyesight in patients who are long-sighted, short-sighted or who suffer from astigmatism. Long-sightedness, also known as hyperopia, affects the patient's ability to see things that are close in front of them. They might have difficulty in seeing the words on a page in front of them or seeing images on the television. Short-sightedness, also known as myopia, affects the patient's ability to clearly see objects in the distance. Objects in the distance might be blurry, while objects in the foreground tend to be very clear. Astigmatism is an optical defect that causes the vision to become blurred.
LASIK eye surgery works to correct these vision problems by using a laser to alter the shape of the cornea, which allows light travelling through it to focus on the retina at the back of the eye, allowing the patient to view images in focus. The surgery takes around 15 minutes under a local anaesthetic.