A comparison of one-stage radial keratotomy with two-stage radial keratotomy in myopia.

To determine the efficacy of one-stage compared with two-stage radial keratotomy, a study was designed to compare both eyes of the same patient with moderate myopia; one eye was operated in one stage and the fellow eye in two stages. The surgical technique was identical in all four procedures of the two patients. Although the case for greater effectiveness with one-stage radial keratotomy cannot be proven on the basis of only a few cases, one-stage surgery appears to be more effective and more predictable.