In RK or Radial Keratotomy, the doctor surgically flattens the cornea by making a series of small, radial (like the spokes of a wheel) incisions in the periphery of the cornea. This flattens the cornea and changes its focusing power so that light rays fall precisely on the retina. Radial keratotomy is used to treat nearsightedness and some forms of astigmatism.

 

Candidates for RK should be at least 18 years old, have stable vision and no abnormalities of the cornea or external eye.

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