LASIK (Laser-Assisted In Situ Keratomileusis) eye surgery works by reshaping the cornea, the transparent front part of the eye, to improve the way light is focused onto the retina. During the procedure, a specialized laser is used to precisely remove a small amount of corneal tissue, altering its curvature. For nearsighted individuals, the cornea is flattened, while for farsighted individuals, it is steepened. Additionally, the laser can correct astigmatism by smoothing an uneven cornea.
The first step involves creating a thin flap on the cornea, which is then lifted to expose the underlying tissue. The laser is applied to the exposed corneal tissue based on the patient's prescription. The amount of tissue removed is minuscule, typically measured in micrometers.
The reshaping process allows light entering the eye to be accurately focused onto the retina, addressing refractive errors and improving overall vision. Following the laser application, the corneal flap is repositioned, serving as a natural bandage that promotes rapid healing. LASIK is known for its quick recovery time, with many patients experiencing improved vision shortly after the procedure.
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