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目的 :分析原位角膜磨镶术 ( laser in situ keratomileusis,L ASIK)治疗近视眼术前、术后眼压与角膜中央厚度的关系。方法 :2 12只眼采用 L ASIK治疗近视眼。用非接触式眼压计测量术前、术后的眼压以及角膜中央厚度 ,对眼压与术前、术后角膜中央厚度进行相关分析和回归分析。结果 :L ASIK术前眼压与角膜中央厚度呈正相关 ,相关系数 r=0 .2 68,p=0 .0 0 0。术后眼压的改变与切除的角膜厚度的改变也呈正相关 ,与实际切除角膜厚度的相关系数为 r=0 .182 ,p=0 .0 0 8。结论 :角膜中央厚度是影响 NCT眼压测量值的重要因素 ,对于眼压的精确测定一定要考虑角膜中央厚度的影响 ,尤其是已接受过准分子激光角膜屈光手术的眼睛
Objective: To analyze the relationship between preoperative intraocular pressure (IOP) and central corneal thickness after laser in situ keratomileusis (LASIK) treatment of myopia. Methods: Twelve eyes were treated with LASIK for myopia. Preoperative and postoperative intraocular pressure (IOP) and central corneal thickness were measured with a non-contact tonometer. Correlation analysis and regression analysis between intraocular pressure and preoperative and postoperative corneal thickness were performed. Results: There was a positive correlation between pre-LASIK and central corneal thickness. The correlation coefficient was 0.2668, p = 0.0000. The change of postoperative IOP was also positively correlated with the change of corneal thickness after resection, and the correlation coefficient with actual corneal thickness was r = 0.182, p = 0.080. CONCLUSIONS: Central corneal thickness is an important factor influencing IOP measurement and accurate measurement of intraocular pressure must take into account the central corneal thickness, especially for those who have undergone excimer laser refractive surgery