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目的 探讨LASIK治疗高度近视术后眼压变化与角膜切削量的关系。方法 42 7例高度近视患者按屈光度分成A组 (-6 0D至 -10 0 0D)和B组 (-10 0至 -2 1 0D) ,施行LASIK术前后用非接触眼压计 (NCT)测量眼压 ,并分析其与角膜切削量的关系。结果 两组眼压术后明显下降。A组为 12 2 1± 3 2 2mmHg ;B组为 10 48± 2 76mmHg(P <0 .0 0 1)。角膜切削量占术前角膜中央厚度A组为 12 4～ 18 9% ;B组为 19 0～ 34 7% (P <0 .0 1)。结论 LASIK治疗高度近视术后NCT眼压值下降与角膜中央厚度变薄和抗压强度减弱有关。
Objective To investigate the relationship between intraocular pressure (IOP) and corneal ablation volume after LASIK in treatment of high myopia. Methods 42 patients with high myopia were divided into group A (-6 0D to -10 0D) and group B (-10 0 to -2 1 0D) according to diopter. Non-contact tonometer (NCT) The intraocular pressure (IOP) was measured and the relationship between the intraocular pressure and the amount of corneal ablation was analyzed. Results After the two groups of intraocular pressure decreased significantly. Group A was 12 2 ± 3 2 2mmHg; Group B was 10 48 ± 2 76mmHg (P <0. 001). Corneal incision accounted for preoperative corneal central thickness of A group was 124 ~ 18 9%; B group was 19 0 ~ 34 7% (P <0. Conclusion The decrease of intraocular pressure (IOP) of NCT after laser in situ keratomileusis (LASIK) treatment is related to the decrease of central corneal thickness and compressive strength.