Origin of notches in CSF: optical or neural?

@article{Apkarian1987OriginON,
  title={Origin of notches in CSF: optical or neural?},
  author={Patricia Apkarian and Robert Tijssen and Henk Spekreijse and David Regan},
  journal={Investigative ophthalmology & visual science},
  year={1987},
  volume={28 3},
  pages={607-12}
}
Grating contrast sensitivity was measured across a range of 1 to 32 cycles per degree (c/deg) in normal observers with a computer-automated method of ascending limits. Monocular contrast sensitivity functions (CSF) were obtained for vertical, oblique and horizontal orientations, with or without full refractive correction. Small amounts of astigmatic error resulted in loss of sensitivity at selective spatial frequencies. Coincident with these CSF "notches" was the presence of monocular diplopia… CONTINUE READING

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