A time-delay calibrated method for cornea hysteresis and intraocular pressure measurement

Kuo Jen Wang, Che Liang Tsai*, Wai Wang, Long Hsu, Ken-Yuh Hsu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The presence of cornea hysteresis (CH) in characterizing the intraocular pressure (IOP) of a human eye deteriorates the accuracy of IOP. To suppress CH, the pressure gauge of a tonometer must be located as close as possible to the cornea. However, this arrangement is unpractical because appropriate working distance to the cornea is required. In this paper, a time-delay calibrated (TDC) method is proposed to counteract the undesired effect of CH in characterizing the IOP. Employing this TDC method, the CH approaches to zero for most eyes measured.

Original languageEnglish
Pages (from-to)340-345
Number of pages6
JournalOptical Review
Volume23
Issue number2
DOIs
StatePublished - 1 Apr 2016

Keywords

  • Cornea hysteresis
  • Intraocular pressure
  • Tonometer

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