Analysis of Interaction between Accommodation and Vergence Feedback Control Systems of Human Eyes
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概要
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Each of two systems of the accommodation and the vergence eye-movement in human eyes is considered to be a feedback control system. It is well known by two phenomena, the accommodation-vergence and the convergent accommodation, that the functions of these control systems are closely related each other. In this paper, the experimental results are shown which reveal dynamic characteristics of the systems of accommodation-vergence and convergent accommodation. It is assumed that both systems are of a linear dynamical system.<BR>By the use of opto-electronic apparatus and targets which moved back and forth, the responses of accommodation-vergence and convergent accommodation to the target motion were detected. The details of the apparatus and the experimental results are given.<BR>Although the present results are unsatisfactory to clarify the control mechanisms, indicial and frequency responses suggest that the dynamic and the static characteristics are quite different between two systems. For the accommodation-vergence, a reasonable model which realizes the characteristics of its control mechanism can be introduced from the view point of control system analysis. On the other hand, it is supposed that the mechanism of the information processing in the convergent accommodation is different from that in the accommodation-vergence, and further response waveform analysis will be necessary to clarify its function.
- 一般社団法人 日本生体医工学会の論文
一般社団法人 日本生体医工学会 | 論文
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