| 人眼微光下夜近视机制的研究 |
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| 引用本文： | 解兰昌,章海军.人眼微光下夜近视机制的研究[J].生理学报,1991,43(6):530-536. |
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| 作者姓名： | 解兰昌 章海军 |
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| 作者单位： | 浙江大学光仪系生理光学实验室 杭州310027
(解兰昌，章海军)，浙江大学光仪系生理光学实验室 杭州310027(董太和) |
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| 摘 要： | 本文利用激光散斑屈光测试系统详细探讨了夜近视(night myopia)的产生机制。夜近视在环境亮度降低到产生暗视觉时出现,并随亮度继续降低而增大,平均值为1.35D。实验证明眼睛球差和色差不是造成夜近视的主要因素。夜近视数值在暗适应过程中呈增大的趋势。在暗视觉时,由于视野中缺少适宜的刺激,眼睛处于暗焦(dark focus)休止状态,这是造成夜近视的主要原因。
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| 关 键 词： | 人眼 夜近视 激光散斑 |
A STUDY OF THE MECHANISM OF PRODUCTION OF NIGHT MYOPIA AT LOW LUMINANCE ENVIRONMENT |
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| IE LAN-CHANG,ZHANG HAI-JUN,DONG TAI-HE.A STUDY OF THE MECHANISM OF PRODUCTION OF NIGHT MYOPIA AT LOW LUMINANCE ENVIRONMENT[J].Acta Physiologica Sinica,1991,43(6):530-536. |
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| Authors: | IE LAN-CHANG ZHANG HAI-JUN DONG TAI-HE |
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| Affiliation: | Optical Instruments Department, Zhejiang University, Hangzhou. |
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| Abstract: | The mechanism of production of night myopia was investigated in detail byusing a laser-speckle refractometer.Night myopia begins to appear at the lu-minance level with the emergence of rod(scotopie)vision and increases to a maxi-mum average of 1.35 D with further decrease of environmental luminance forthe completion of rod vision.It is demonstrated experimentally that bothspherical and chromatic aberrations of the eye do not play an important role inthe production of night myopia.It is therefore concluded that night myopia isposed on the dark focus of accommodation of the resting state focus of the eye inthe absence of adequate stimulus during scotopic vision. |
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| Keywords: | night myopia laser speckle dark focus |
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