| 微机控制激光视网膜MTF测定技术的研究 |
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| 引用本文： | 周传清,金成鹏,刘晓玲,陶育华.微机控制激光视网膜MTF测定技术的研究[J].眼视光学杂志,2000,2(3):159-161. |
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| 作者姓名： | 周传清 金成鹏 刘晓玲 陶育华 |
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| 作者单位： | 1. 温州医学院附属第二医院眼科,浙江,温州,325027
2. 温州医学院附属眼视光学院,浙江,温州,325027 |
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| 摘 要： | 目的;研究视觉系统视网膜－大脑部分的调制传递函数ＭＴＦ（或称对比敏感度函数ＣＳＦ）的测定技术,并研制开发新一代微机控制的激光视网膜－大脑ＭＴＦ测定仪,方法：对Ｈｅ－Ｎｅ激光为光源,利用杨氏干涉法,经光学系统在视网膜上呈现正弦干涉条纹。测定不同空间频率条纹分辨的对比度阈值,便可测算出ＭＴＦ。结果和结论：初步临床应用表明,该仪器性能稳定,精度高。由于采用微机控制,具有方便,快捷的特点,适于在科研和临床
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| 关 键 词： | 激光干涉条纹 视力 视网膜 对比敏感度 MTF |
| 修稿时间： | 2000-03-24 |
A computerized technique for retina-brain MTF measurement with laser-generated interference fringes |
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| ZHOU
Chuan-qing,JIN Cheng-peng,LIU Xiao-l ing,et al..A computerized technique for retina-brain MTF measurement with laser-generated interference fringes[J].Chinese Journal of Optometry & Ophthalmology,2000,2(3):159-161. |
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| Authors: | ZHOU
Chuan-qing" target="_blank">ZHOU
Chuan-qing JIN Cheng-peng LIU Xiao-l ing |
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| Institution: | ZHOU
Chuan-qing,JIN Cheng-peng,LIU Xiao-l ing,et al.
(The Second Affiliated Hospital of Wenzhou Medical College,Wenzhou 325027) |
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| Abstract: | Objective:To investigate testing techniques for the modulation transfer function (MTF) or contrast sensitivity function (CSF) from retina to brain in the human visual system, and to develop a micro-computerized laser tester for retina-brain MTF.Methods:Sinusoidal He-Ne laser-generated interference fringes were projected on the retina through the optical system according to Yong's interference principle. MTF was obtained by measuring the modulation thresholds of the different spacial frequencies resolved.Results and Conclusion:This tester was stable and accurate and, because of micro-computerization, it was used very easily and quickly. This tester was suitable and efficient for both research and clinical applications. |
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| Keywords: | laser-generated interference fringes visual acuity retina modulation transfer function contrast sensitivity |
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