Characteristics of human corneal psychophysical channels.

  title={Characteristics of human corneal psychophysical channels.},
  author={Yunwei Feng and Trefford L. Simpson},
  journal={Investigative ophthalmology & visual science},
  volume={45 9},
PURPOSE To characterize human corneal psychophysical channels. METHODS Twenty subjects participated in this study. A Belmonte pneumatic esthesiometer was used to deliver stimuli, and the ascending method of limits and the method of constant stimuli were used to estimate thresholds. Sensation was characterized for different stimuli. Corneal mechanical and… CONTINUE READING