Seventy five cases of anterior radial keratotomies were performed at Keimyung University Dong-san Medical Center from June, 1989 to October, 1991. We devided the eyes into two groups according to their refractive error which were mild to
moderate(-2.00D~-6.00) and high (>-6.00D) myopia. The surgical technique consists of eight incisions using a diamond micrometer knife. The diameter of the optical clear zone and whether performing peripheral redeepening or not were chosen by
degree
of
myopia.
Before surgery, mean spherical equivalent was -5.27D and uncorrected visual acuity was 20/200 or worse in 70.3% of eyes.
In cases of mild and moderate myopia, postoperative six-month uncorrected visual acuity was 20/20 in 32.6% and 20/40 or better in 71.1% of eyes and mean reduction effect of spherical equivalent and keratometric value were 3.53D, 2.94D
respectively.
In
high myopia, postoperative six-month uncorrected visual acuity was 20/20 in 6.9% and 20/40 or better in 27.6% of eyes and mean reduction effect of spherical equivalent and keratometric value were 4.73D, 3.94D respectively.
Reduction affect of spherical equivalent and keratometric value according to age, sex, performing of redeepening procedures had no statistically significant difference although peripheral redeepening of the incision seemed to have more reduction
effect.
We concluded that radial keratotomy seemed to be a safe and effective procedure for the eyes with mild and moderate myopia.
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