Variation of astigmatism with accommodation and its relationship with dark focus.

@article{Millodot1985VariationOA,
  title={Variation of astigmatism with accommodation and its relationship with dark focus.},
  author={Michel Millodot and Charles Thibault},
  journal={Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians},
  year={1985},
  volume={5 3},
  pages={297-301}
}
The refraction of 122 eyes was measured for five distances of fixation with an objective Canon Auto Refractor. The cylindrical component was found to vary, but by a small amount. We found no evidence of a deliberate reduction in astigmatism with accommodation, in accord with other studies. The axis was also found to vary by at least 5 degrees in about half of the subjects tested, which is also in good accord with other investigations. The dark focus of 31 eyes was not found to correlate with a… CONTINUE READING