【作者】 金晨晖； 金成鹏； 刘晓玲； 陶育华；

【Author】 Jin ChenHui,Jin ChengPeng,Liu XiaoLing,et alInstitute of Optometry & Ophthalmology,Wenzhou Medical College,Wenzhou China,325027

【机构】 温州医学院眼视光学院；

【摘要】 目的:证明利用空间光栅法测定人眼视网膜-大脑调制传递函数(MTF)的有效性,从而可以开发出一种结构小巧、移动性好、价格便宜、性能稳定的MTF测量仪。方法:在实验室搭建实验装置,分别利用矩形光栅法的实验装置和平板法视网膜MTF测量仪器,来测定正视眼组和屈光不正组的不同空间频率条纹分辨的阈值,算出并分析比较所测MTF值。结论:本实验装置经过试用证明,其性能稳定、结果正确、可避开屈光因素的影响、能有效反映人眼的MTF曲线特征,与以往方法所测MTF值的符合性好,从而证明了利用空间光栅法(矩形光栅)测量视网膜MTF的原理的正确性。更多还原

【Abstract】 Objective:To testify the effectiveness of measuring retina-to-brain modulation transferfunction(MTF) in human eye by a grating, so as to invent a new instrument more compact,moveable, cheap and stable. Methods:Measuring the retina MTF of two groups people withemmetropia and ametropia ,using the instrument by means of a grating and parallel platerespectively. Then compare and analyze the MTF measured. Conclusion:After applied in trial ofmeasurement , this experimental instrument based on the principle of the grating is effective.更多还原