The statistical study of 384 R.K. performed by the same surgeon shows
that in 82 % of R.K., preoperative myopia was between - 1.5 to - 6 dio
pters and in 77.5 % of R.K., postoperative refraction was between - 1
to + 1. The 90 % confidence interval was between - 2 to + 1 for all pr
eoperative myopias and was the best when preoperative myopia was betwe
en - 0.5 to - 3 diopters (- 1 to + 1 D.). The study of the stability a
nd security shows that this surgical technique is stable and gives a g
ood security.