Stavrou Efty P, Wood Joanne M
Centre for Eye Research, Queensland University of Technology.
Clin Exp Optom. 2003 May;86(3):152-6. doi: 10.1111/j.1444-0938.2003.tb03097.x.
To investigate the discriminative ability of letter contrast sensitivity (CS) and visual acuity (VA) in detecting functional losses in participants with type 2 diabetes.
LogMAR VA and letter CS were measured on 20 type 2 diabetic and 24 age-matched control participants. The diabetic participants were sub-grouped according to the level of retinopathy present.
Letter CS was able to distinguish those participants with and without macular oedema and those with no or minimal diabetic retinopathy from the control group, whereas VA was not.
Letter CS may be used as an effective screening tool to assess damage to the visual pathway of diabetic participants both with and without clinically detectable signs.
研究字母对比敏感度（CS）和视力（VA）在检测2型糖尿病患者功能丧失方面的辨别能力。
对20名2型糖尿病患者和24名年龄匹配的对照参与者测量了LogMAR视力和字母对比敏感度。根据存在的视网膜病变程度对糖尿病参与者进行亚分组。
字母对比敏感度能够区分有或没有黄斑水肿的参与者以及没有或仅有轻微糖尿病视网膜病变的参与者与对照组，而视力则不能。
字母对比敏感度可作为一种有效的筛查工具，用于评估有或没有临床可检测体征的糖尿病参与者视觉通路的损伤情况。
