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正常眼激光视觉对比敏感度曲线的测定
Determination of the Laser Contrast Sensitivity Function Curve of Normal Subjects
【摘要】 介绍了124只正常眼视觉对比敏感度(CSF)曲线的测定方法。结果表明正常CSF曲线为一倒“U”型,峰值为4周/度,并受年龄影响。36岁~45岁中年组CSF最高。并对此结果与临床关系试行分析
【Abstract】 The authors determined the laser contrast sensitivity function curves of 124 normal eyes and found that the normal CSF curve was in the form of an inverted-U, or the band-pass type, with peak value at 4c/d. CSF was the highest in the middle-age group of 36-45 years. In comparison with subjects under 45 years of age, the senile group of 46-62 years had a higher CSF at the low frequency region and a lower CSF at the high frequency region, with peak value shifted to the left at 2c/d. The authors tried to explain the results from clinic relations.
【关键词】 对比敏感度;
空间频率;
对比敏感阈值;
【Key words】 contrast sensitivity function; spatial frequency; contrast sensitivity threshold.;
【Key words】 contrast sensitivity function; spatial frequency; contrast sensitivity threshold.;
- 【文献出处】 眼科研究 ,Chinese Ophthalmic Research , 编辑部邮箱 ,1990年02期
- 【被引频次】21
- 【下载频次】81