Assessment of short-term variability in human spontaneous blink rate during video observation with or without head / chin support

Michael Doughty

Research output: Contribution to journalArticle


Background: The aim was to assess the variability of spontaneous blink rate (SBR) with and without a chin and forehead support.

Methods: Forty-eight healthy non-contact lens wearers, aged from 20 to 39 years, had five-minute video recordings made under ambient lighting of 350 to 400 lux, while directing their gaze to a distant target at head height. Half the subjects (group 1) were seated resting against the chair head rest and the other half (group 2) seated but with chin and forehead at a slitlamp. The first 35 blinks were analysed in detail.
Original languageEnglish
Pages (from-to)135-141
Number of pages7
JournalClinical and Experimental Optometry
Issue number2
Early online date17 Feb 2016
Publication statusPublished - 25 Mar 2016



  • blink rate
  • vision sciences

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