Investigation of limbal touch sensitivity using a Cochet-Bonnet aesthesiometer

Br J Ophthalmol. 1993 Jun;77(6):339-43. doi: 10.1136/bjo.77.6.339.

Abstract

Following the observation of complex sensory receptors concentrated within the palisade zone of the human conjunctiva, this study sought to measure limbal touch sensitivity using a Cochet-Bonnet aesthesiometer. Touch sensitivity was found to be significantly higher in the palisade zone compared with the adjacent conjunctiva. A comparison between temporal and inferior limbus showed a greater median sensitivity for the temporal zone. There was a significant reduction in touch sensitivity with age, but not with iris colour or contact lens wear. These data, showing a higher touch sensitivity for the palisade zone, provide indirect evidence for a role of complex nerve endings in mechanoreception.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Aged, 80 and over
  • Aging / physiology
  • Contact Lenses
  • Eye Color / physiology
  • Female
  • Humans
  • Limbus Corneae / anatomy & histology
  • Limbus Corneae / innervation*
  • Male
  • Mechanoreceptors / physiology*
  • Middle Aged
  • Sensory Thresholds / physiology
  • Touch / physiology*