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目的观察准分子激光原位角膜磨镶术(laser in situ keratomileusis,LASIK)后早期眩光对暗视下对比敏感度的影响。方法采用MesotestⅡb对比敏感度仪,检测72例行LASIK患者术后3个月的对比敏感度,并比较有和无眩光两种情况对暗视下对比敏感度的影响。结果无眩光时,未通过各测试等级的患者数较术前增加,但仅第4级(1∶2)差异有统计学意义;有眩光时,各测试等级未通过患者数较术前明显增加,第6级(1∶5)、第7级(1∶2.7)、第8级(1∶2)差异均有统计学意义。暗视下有眩光时,对比度降低2个等级以上的患者数明显多于无眩光时,差异有统计学意义。结论LASIK术后早期有眩光时暗视下对比敏感度明显降低。
Objective To observe the effect of early glare on Contrastive Sensitivity after scleral laser in situ keratomileusis (LASIK). Methods Contrast sensitivity was measured by Mesotest IIb contrast sensitivity meter in 72 patients with LASIK at 3 months after operation. The contrast sensitivity of the two patients with and without glare was compared. Results No glare, the number of patients did not pass the test were increased compared with preoperative, but only the first 4 (1: 2) difference was statistically significant; with glare, the test fails to pass the number of patients was significantly increased compared with preoperative , Grade 6 (1: 5), grade 7 (1: 2.7), grade 8 (1: 2), respectively. When there was glare under dark vision, the number of patients with contrast reduction of more than 2 levels was significantly higher than that without glare, the difference was statistically significant. Conclusions Contrast sensitivity was significantly lower under glaucoma with early glaucoma after LASIK.