Elliott D B, Patla A, Bullimore M A
Department of Optometry, University of Bradford.
Br J Ophthalmol. 1997 Oct;81(10):889-95. doi: 10.1136/bjo.81.10.889.
To determine the improvements in clinical and functional vision and perceived visual disability after first and second eye cataract surgery.
Clinical vision (monocular and binocular high and low contrast visual acuity, contrast sensitivity, and disability glare), functional vision (face identity and expression recognition, reading speed, word acuity, and mobility orientation), and perceived visual disability (Activities of Daily Vision Scale) were measured in 25 subjects before and after uncomplicated cataract surgery (10 first eye surgery and 15 second eye surgery) and in 10 age matched controls.
Significant improvements were found after surgery in clinical and functional vision and perceived visual disability. Greater improvements were found after first eye surgery than after second eye surgery. However, first eye surgery did not return all scores to age matched normal levels. There were significant improvements in several of the tests measured after second eye surgery, and all postoperative values were similar to those from age matched normals.
Significant improvements in clinical, functional, and perceived vision are obtained by cataract surgery. The improvements in objective measures of functional vision found in this study support previous findings of improvements in patients' perceived functional vision. In addition, these data provide support to the necessity of second eye surgery in some patients to improve certain aspects of visual function to age matched normal levels.
确定首次和第二次白内障手术后临床和功能性视力以及视觉障碍感的改善情况。
对25名受试者在进行简单白内障手术前（10例首次手术和15例第二次手术）和术后以及10名年龄匹配的对照组测量临床视力（单眼和双眼高、低对比度视力、对比敏感度和失能眩光）、功能性视力（面部识别和表情识别、阅读速度、单词视力和活动定向）以及视觉障碍感（日常视觉活动量表）。
手术后临床和功能性视力以及视觉障碍感均有显著改善。首次手术后的改善比第二次手术后更明显。然而，首次手术并未使所有指标恢复到年龄匹配的正常水平。第二次手术后所测量的多项测试有显著改善，且所有术后值与年龄匹配的正常者相似。
白内障手术可显著改善临床、功能性和视觉障碍感视力。本研究中功能性视力客观指标的改善支持了先前关于患者功能性视力改善的研究结果。此外，这些数据支持了部分患者进行第二次手术以将视觉功能的某些方面改善至年龄匹配正常水平的必要性。
