Hård A L, Beckman C, Sjöstrand J
Department of Ophthalmology, University of Göteborg, Sweden.
Acta Ophthalmol (Copenh). 1993 Aug;71(4):471-6. doi: 10.1111/j.1755-3768.1993.tb04620.x.
The efficacy of cataract surgery in improving visual performance was evaluated in 10 patients by measuring changes in intraocular light scatter, contrast sensitivity and glare induced visual loss. Two different methods were used to estimate these functions before and after cataract extraction with implantation of a monofocal posterior intraocular lens. By one method intraocular light scattering was assessed. By the other, letter contrast sensitivity and glare induced visual loss were determined. Preoperatively most patients had various glare problems, glare induced visual loss and increased intraocular light scatter. Following surgery the letter contrast sensitivity increased by a factor of 3 or more (mean 4.3). The glare problems diminished or disappeared after surgery, although several patients still had increased intraocular light scattering and glare induced visual loss compared to normals. Postoperatively the contrast sensitivity both with and without glare had increased to a level where the glare induced visual loss did not create any visual problems.
通过测量眼内光散射、对比敏感度和眩光引起的视力丧失的变化，对10例患者白内障手术改善视觉功能的疗效进行了评估。在白内障摘除并植入单焦点后房型人工晶状体前后，使用两种不同的方法来评估这些功能。一种方法是评估眼内光散射。另一种方法是测定字母对比敏感度和眩光引起的视力丧失。术前大多数患者存在各种眩光问题、眩光引起的视力丧失和眼内光散射增加。手术后，字母对比敏感度提高了3倍或更多（平均4.3）。手术后眩光问题减轻或消失，尽管与正常人相比，仍有几名患者存在眼内光散射增加和眩光引起的视力丧失。术后，有眩光和无眩光时的对比敏感度均提高到眩光引起的视力丧失不会造成任何视觉问题的水平。
