Accommodation dynamics as a function of age.

  title={Accommodation dynamics as a function of age.},
  author={Gordon Heron and William Neil Charman and Lyle S. Gray},
  journal={Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians},
  volume={22 5},
Experiments are described in which the dynamic accommodation response to a stimulus whose vergence was varying sinusoidally with time between 1.33 and 2.38 D was measured as a function of frequency for 19 subjects, with ages distributed between 18 and 49 years. Response to abrupt stimulus change between the same levels was also measured. The results showed that at any age, for the sinusoidal stimuli, gain fell with frequency and phase lag increased: at fixed frequency, gain fell with age and… CONTINUE READING

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