The keratotomy procedures are generally of historic interest only. Radial keratotomy is rarely used nowadays, having been almost entirely supplanted by laser procedures. Astigmatic keratotomy may still be suggested for some cases of astigmatism, however.

The radial and astigmatic keratotomy procedures involve the making of a number of cuts in the cornea of the eye using a diamond knife. Radial incisions are used to correct nearsightedness and arcuate incisions are used to correct astigmatism. By changing the mechanical structure of the cornea, the corneal shape is changed to correct refractive errors. Visual improvement may occur within 24 hours and generally occurs within a week.

The risks and benefits of the RK and AK procedures are presented in detail in the informed consent form and will be carefully discussed with you by the doctor and our staff. Although vision generally improves quickly, it may tend to fluctuate during the day and long-term changes in refractive error may occur. In addition, a star burst effect around light and glare may be noticed especially at night.