Amount of defocus is not used as an error signal in the control system of accommodation dynamics

Ophthalmic and Physiological Optics

Volumn 17, Issue 1, 1997, Pages 55-60

  Yamada, Tetsuto ^a   Ukai, Kazuhiko ^a,b  

^a KITASATO UNIVERSITY SCHOOL OF MEDICINE   (Japan)

^b NIHON FUKUSHI UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

ACCOMMODATION; ADULT; ARTICLE; CONTROL SYSTEM; CURVE FITTING; HUMAN; HUMAN EXPERIMENT; MALE; NEGATIVE FEEDBACK; NORMAL HUMAN; PRIORITY JOURNAL; RETINA IMAGE; TECHNIQUE; VISUAL STIMULATION;

ACCOMMODATION, OCULAR; ADULT; HUMANS; MALE; REACTION TIME;

EID: 0031015431     PISSN: 02755408     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0275-5408(96)00021-X     Document Type: Article

References (23)

1. Charman, W. N. and Tucker, J. (1977). Dependence of accommodation response on the spatial frequency spectrum of the observed object. Vision Res. 17, 129-139.
2. Charman, W. N. and Tucker, J. (1978). Accommodation as a function of object form. Am. J. Optom. Physiol. Opt. 55, 84-92.
3. Charman, W. N. and Heron, G. (1988). Fluctuations in accommodation: a review. Ophthal. Physiol. Opt. 8, 153-164.
4. Draper, N. R. and Smith, H. (1981). Applied Regression Analysis, second edn. John Wiley & Sons, New York, USA, pp 458-529.
5. Hung, G. K., Semmlow, J. L. and Ciuffreda, K. J. (1986). A dual-mode dynamic model of the vergence eye movement system. IEEE Trans. Biomed. Engng 33, 1021-1028.
6. Hung, G. K. and Ciuffreda, K. J. (1988). Dual-mode behavior in the human accommodative system. Ophthal. Physiol. Opt. 8, 327-332.
7. Kotulak, J. C. and Schor, C. M. (1986). A computational model of the error detector of human visual accommodation. Biol. Cybernet. 54, 189-194.
8. Krishnan, V. V. and Stark, L. (1975). Integral control in accommodation. Comput. Prog. Biomed. 4, 237-245.
9. Rashbass, C. and Westheimer, G. (1961). Disjunctive eye movements. J. Physiol. (Lond.) 159, 339-360.
10. Schor, C. M., Alexander, J., Cormack, L. and Stevenson, S. (1992). A negative feedback control model of proximal convergence and accommodation. Ophthal Physiol Opt. 12, 307-318.
11. Stark, L. and Takahashi, Y. (1965). Absence of an odd-error signal mechanism in human accommodation. IEEE Trans. Biomed. Engng 12, 138-146.
12. Stark, L., Takahashi, Y. and Zames, G. (1965). Nonlinear servo analysis of human lens accommodation. IEEE Trans. Sys. Sci. Cybern. 1, 75-83.
13. Sun, F. and Stark, L. (1990). Switching control of accommodation: experimental and simulation responses to ramp inputs. IEEE Trans. Biomed. Engng 37, 73-79.
14. Tsuchiya, K., Ukai, K. and Ishikawa, S. (1989). A quasistatic study of pupil and accommodation after-effect following near vision. Ophthal. Physiol. Opt. 9, 385-391.
15. Tucker, J. and Charman, W. N. (1979). Reaction and response times for accommodation. Am. J. Optom. Physiol. Opt. 56, 490-503.
16. Ukai, K., Tanemoto, Y. and Ishikawa, S. (1983). Direct recording of accommodative response versus accommodative stimulus. In: Advances in Diagnostic Visual Optics (eds G. M. Breinin and I. M. Siegel), Springer-Verlag, Berlin, Germany, pp 61-68.
17. Ukai, K., Ishii, M. and Ishikawa, S. (1986). A quasistatic study of accommodation in amblyopia. Ophthal. Physiol. Opt. 6, 287-295.
18. Ukai, K., Ishikawa, S., Ichihashi Y. and Hatada, T. (1987). Method for measuring dark focus of accommodation (in Japanese). Nippon Gankougaku Gakkaishi (J. Ophthalmol. Opt. Soc. Jpn) 8, 61-65.
19. Ukai, K. and Ishikawa, S. (1989). Accommodative fluctuations in Adie's syndrome. Ophthal. Physiol. Opt. 9, 76-78.
20. Wildt, G. J. v. d., Bouman, M. A. and Kraats, J. v. d. (1974). The effect of anticipation on the transfer function of the human lens system. Opt. Acta 21, 843-860.
21. Woung, L.-C., Ukai, K., Tsuchiya, K. and Ishikawa, S. (1993). Accommodative adaptation and age of onset of myopia. Ophthal. Physiol. Opt. 13, 366-370.
22. Yamada, T., Ukai, K., and Ishikawa, S. (1988). Least square estimation of time constant using a microcomputer (in Japanese). Nippon Ganka Gakkai Zasshi (Acta Soc. Ophthalmol. Jpn) 92, 344-350.
23. Yamada, T., Ukai, K. and Ishikawa, S. (1989). Analysis of vergence function by step stimulus (in Japanese). Nippon Ganka Gakkai Zasshi (Acta Soc. Ophthalmol. Jpn) 93, 859-864.