Shortsight is a restriction in the ability to focus at distance. It is caused by the eye being too long and/or the cornea being too curved. The focal point of the eye falls inside the eye.
Shortsightedness is indicated by a negative prescription.
Correcting Shortsightedness
To correct shortsightedness, the cornea is flattened by the laser making the optical system less powerful and allowing the focal point fo the image to move backwards on to the retina.
The cornea can be flattened by a number of different ways. At Centre for Sight, we prefer IntraLASIK where the Intralase laser is used to create a thin flap and the Zyoptix Excimer laser is used to flatten the cornea under the flap. Other options include PRK / LASEK / Epi-LASEK.
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