准分子激光原位角膜磨镶术后早期眩光对暗视下对比敏感度的影响
Chinese Journal of Ophthalmology and Otorhinolaryngology(2009)
Abstract
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。
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Key words
Contrast sensitivity,Laser in situ keratomileusis,Glare
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