Effect of Vergence Adaptation on Convergence Accommodation: Model Simulations

被引:1
|
作者
Hung, George K. [1 ]
机构
[1] Rutgers State Univ, Dept Biomed Engn, Piscataway, NJ 08854 USA
关键词
D O I
10.1109/TBME.2010.2075591
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
Sreenivasan et al. [1] have used an inappropriate measure to estimate convergence accommodation under CL accommodation and vergence, which they then used to compare the two adaptation models. In [1, Fig. 8(b)], they used a dual-scale plot to exaggerate the small change in experimental dynamics, but such a plot could only appropriately provide a comparison of steady-state level responses.Quantitative analysis of the static model of accommodation and vergence showed that subtraction of CL and OL responses resulted in a small numerical value, which is close to the authors' experimentally derived value. The authors had assumed erroneously that such a difference would represent the convergence accommodation response. But their value is very different from the large numerical value for convergence accommodation calculated analytically. In the model simulations, the large difference in steady-state convergence accommodation levels for the two models provides a means to assess their appropriateness. Schor's model response exhibited a very small value. On the other hand, Hung's model response exhibited a large value, which is close to the level calculated analytically. © 2010 IEEE.
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页码:2787 / 2789
页数:3
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