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应用准分子激光角膜切削术对100例(164只眼)近视性散光患者进行光学角膜切削术治疗,对随诊6个月的患者进行观察,按术前散光度分为A(散光0.25—0.75D),B(散光1.00-2.00D)及C(散光2.25-3.50D)三组。对手术前、后散光的变化进行比较。A.B.C三组术前散光分别为-0.672±0.62D,-1.41±1.21D,-2.57±2.31D,术后6个月时残留散光分别为-0.16±0.27D,-0.98±0.56D和-1.97±0.25D,而术后残留散光轴向与术前散光轴向之间的夹角分别为8.28°±7.48,6.85°±6.25和6.36°±8.11结果PRK治疗低度散光效果明显,但在中高度散光组有一定的回退现象。
100 cases (164 eyes) of myopic astigmatism were treated by optical corneal incision with excimer laser keratectomy. The patients who were followed up for 6 months were observed, and the preoperative astigmatism was divided into A (astigmatism 0.25-0.75 D), B (astigmatism 1.00-2.00D) and C (astigmatism 2.25-3.50D) three groups. The changes of astigmatism before and after surgery were compared. ABC preoperative astigmatism were -0.672 ± 0.62D, -1.41 ± 1.21D, -2.57 ± 2.31D, residual astigmatism after 6 months were -0.16 ± 0.27D, -0.98 ± 0.56D and -1.97 ± 0.25D, and the postoperative residual astigmatism axis and preoperative astigmatism axis of the angle between the 8.28 ° ± 7.48,6.85 ° ± 6.25 and 6.36 ° ± 8.11 results PRK treatment of low astigmatism effect is obvious, but in the High astigmatism group has a certain regression phenomenon.