The visual resolution of Landolt-C optotypes in human subjects depends on their orientation: the 'gap-down' effect.

Abstract

The visual resolution was measured in 184 healthy subjects using luminance contrast defined Landolt optotypes at eight different gap locations. The investigation used monocular detection for both eyes up to acuity thresholds. Acuity estimates were obtained under forced choice conditions and the threshold defined by a sensitive criterion. The results show… (More)

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Cite this paper

@article{Schrauf2001TheVR, title={The visual resolution of Landolt-C optotypes in human subjects depends on their orientation: the 'gap-down' effect.}, author={Michael Schrauf and Caitlin A. Stern}, journal={Neuroscience letters}, year={2001}, volume={299 3}, pages={185-8} }