[Excimer laser in situ keratomileusis for treatment of XXXX ].

@entity1 @entity1020 @entity940 @entity1714
OBJECTIVE: To evaluate the effectiveness of excimer laser in situ keratomileusis (LASIK) for treatment of @entity1714 . METHODS: 928 eyes of 678 myopic @entity1 who received LASIK were studied. The @entity1 were divided into 3 groups according to preoperative diopters (-2.00 - -6.00D, -6.10 - -10.00D _ -10.10 - -20.00D). The mean follow-up was 12 months (6 - 18 months) and the results were statistically analyzed. RESULTS: 12 months after surgery, in the first group the mean residual refraction was -0.24 +/- 0.50D in 86% and 92% of eyes were in the ranges of refraction +/- 0.50D and +/- 1.00D, the uncorrected visual acuities of 0.5 and 1.0 were in 99% and 86% of the eyes respectively. In the second group, the mean residual refraction was -0.47 +/- 0.64D, the refraction of 83% and 90% of eyes was in the ranges of +/- 0.50D and +/- 1.00D, and the uncorrected visual acuities in 95% and 79% of eyes were 0.5 and 1.0 respectively. In the third group, the mean residual refraction was -0.89 +/- 1.02D, the refraction of 36% and 62% of the eyes were in the ranges of +/- 0.50D and +/- 1.00D, and the uncorrected visual acuities in 68% and 45% of the eyes were 0.5 and 1.0 respectively. 47 eyes had been retreated with LASIK. 5 eyes lost two or more lines of the best corrected visual acuity due to irregular @entity940 , decentration and progressive @entity1020 . CONCLUSION: The results indicate that LASIK can treat @entity1714 in the range of -2.00 - -20.00 D effectively without vision threatening complications. Some modification of the surgical techniques and laser nomogram will help to improve predictability and stability of outcome.
