The relation between corneal and total astigmatism.

@article{Keller1996TheRB,
  title={The relation between corneal and total astigmatism.},
  author={Paul R Keller and Michael J. Collins and Leo G. Carney and Brett A. Davis and Paul P Van Saarloos},
  journal={Optometry and vision science : official publication of the American Academy of Optometry},
  year={1996},
  volume={73 2},
  pages={86-91}
}
Using computer-assisted videokeratoscopy we measured corneal astigmatism and compared these results over a range of corneal zone diameters with total ocular astigmatism derived by subjective refraction. Videokeratoscopes permit a more detailed analysis of the power distribution within a given corneal surface area, enabling comparison to the total astigmatism for equivalent aperture sizes. Although there were significant individual variations, the group average data supports the traditional view… CONTINUE READING

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