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LASIK (Laser Assisted In-situ Keratomileusis) is commonly referred to simply as laser eye surgery. It is a procedure performed by ophthalmologists by using a laser beam to correct refractive errors. In this procedure the cornea is reshaped to treat short-sightedness, long-sightedness and astigmatism and restore normal vision. Most people therefore do not need spectacles or contact lenses after LASIK treatment unless the initial refractive error is very high.

Refractive Errors

Short sightedness - Myopic Eye (Minus Power) is longer than normal or has a steep cornea as a result the light rays focus in front of the Myopic Eye (Minus Power) retina. Close objects look clear, but distant objects appeared blurred.

Far sightedness - Hyperopic Eye (Plus Power) is a refractive error which means that the eye does not bend or refract light rays properly to a entering eye single focus to see images clearly. In Hyperopia, distant objects look somewhat clear but close objects appear blurred.

Astigmatism (Cylindrical Power) when the cornea has an irregular shape, it is called corneal astigmatism. When the shape of the lens is distorted, you have lenticular astigmatism. In both the cases, your vision for near and far objects appears blurred or distorted. It's almost like looking into a fun-house mirror in which you appear too tall, too wide, or too thin.


In order to get the full benefit of LASIK treatment, you must be

  • At least 18 years of age or older but preferably below 40
  • Have healthy eyes free from retinal problems, corneal scar or any other eye disease.
  • Have a refractive error within the range of -1 to -7 diopters.
  • Have less than 3 diopters of Astigmatism.
  • Patients who have "higher order" aberrations may also be recommended by Custom LASIK as part of a treatment plan.