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目的:探讨术前角膜厚度、眼压和屈光度等因素对近视准分子激光原位角膜磨镶术疗效的影响。方法:采用LASIK对379例746眼进行治疗。根据术前屈光度进行分组,观察术后裸眼视力与术前角膜厚度、眼压、角膜厚度(CT)/眼压(IOP)比值及屈光度之间关系。结果:术后裸眼视力4.5～5.2,平均4.99±0.11,三组间有显著性差异(P=0.000)。二乘回归和相关分析显示,角膜较厚、眼压较低,即CT/IOP值大,术后裸眼视力较好,二者之间存在正相关;术前眼压与术后裸眼视力之间存在负相关,而术前角膜厚度与术后裸眼视力之间无相关性存在。结论:LASIK治疗近视是一种安全、有效的方法,但欲取得较好疗效,应考虑不同因素如术前角膜厚度、眼压等因素可能造成的影响,尤其是对高度或超高度近视,必要时采取部分矫正屈光力,剩余屈光度日后配戴低度眼镜方法,避免出现术后并发症及屈光回退。
Objective: To investigate the effect of preoperative corneal thickness, intraocular pressure and diopter on the curative effect of laser in situ keratomileusis. Methods: 379 cases of 746 eyes were treated with LASIK. According to the preoperative refractive power grouping, the relationship between postoperative uncorrected visual acuity and preoperative corneal thickness, intraocular pressure, corneal thickness (CT) / IOP ratio and refraction were observed. Results: Postoperative uncorrected visual acuity 4.5 ~ 5.2, average 4.99 ± 0.11, there was a significant difference between the three groups (P = 0.000). The regression analysis and correlation analysis showed that the cornea was thick and the intraocular pressure was low, that is, the CT / IOP value was great. The visual acuity of the uncorrected visual acuity was good after the operation. There was a positive correlation between them. The preoperative intraocular pressure and uncorrected visual acuity There is a negative correlation between preoperative corneal thickness and postoperative uncorrected visual acuity there is no correlation. Conclusion: LASIK treatment of myopia is a safe and effective method, but to obtain better curative effect, we should consider the impact of different factors such as preoperative corneal thickness, intraocular pressure and other factors may be caused, especially for high or super high myopia, necessary To take partial correction of refractive power, the remaining refraction wear glasses in the future to avoid postoperative complications and refractive regression.