Wilkins M, McPherson R, Fergusson V
Frimley Park Hospital, Camberley, Surrey, UK.
Eye (Lond). 1996;10 ( Pt 1):117-20. doi: 10.1038/eye.1996.20.
The purpose of this study was to look at the changes in Snellen visual acuity and contrast sensitivity under standard and glare conditions before and after Nd:YAG laser capsulotomy. Contrast sensitivity was measured with a Pelli-Robson chart; a Brightness Acuity Tester was used as a glare source. Seventeen pseudophakic patients with no other ocular disease underwent a capsulotomy. Under standard conditions, 7 showed an improvement in visual acuity and 15 showed an improvement in contrast sensitivity. Under glare conditions, 10 patients showed an improvement in visual acuity and all 17 showed an improvement in contrast sensitivity. The improvement in average contrast sensitivity was greater under glare (0.330) than under standard conditions (0.210; p = 0.01). Contrast sensitivity measurement, particularly under glare conditions, provides additional information in the assessment of pseudophakes with opaque posterior capsules.
钇铝石榴石激光晶状体囊切开术前、后在标准和眩光条件下的斯内伦视力及对比敏感度的变化。使用贝利-罗布森视力表测量对比敏感度；使用亮度视力测试仪作为眩光光源。17例无其他眼部疾病的人工晶状体植入患者接受了囊切开术。在标准条件下，7例患者视力提高，15例患者对比敏感度提高。在眩光条件下，10例患者视力提高，所有17例患者对比敏感度提高。眩光条件下平均对比敏感度的改善（0.330）大于标准条件下（0.210；p = 0.01）。对比敏感度测量，尤其是在眩光条件下，为评估后囊膜混浊的人工晶状体植入患者提供了额外信息。
