title: Eye stiffness measurement by probe contact method.
abstract: The internal eye pressure is an important index for judging whether an eye suffers from glaucoma or not. The conventional eye pressure measurement is valid only under the condition that all subjects have the same structural eye stiffness. This paper challenges the practice of measuring the stiffness of a human eye by pressing the cornea with a contact probe. The displacement of the eye is captured by a camera with high resolution. Experimental results suggest that the measured eye stiffness nicely matches with the theoretical estimation. Based on the experimental results, the difference between the eye stiffness measured by the contact method and the non-contact method is discussed.
authors.affiliation: Graduate School of Engineering, Hiroshima University, Japan. kurita@hfl.hiroshima-u.ac.jp
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Kurita
authors.forename: Roland
authors.initials: R
authors.lastname: Kempf
authors.forename: Yoshichika
authors.initials: Y
authors.lastname: Iida
authors.forename: Makoto
authors.initials: M
authors.lastname: Kaneko
authors.forename: Eiichiro
authors.initials: E
authors.lastname: Sugimoto
authors.forename: Hidetoshi
authors.initials: H
authors.lastname: Tsukamoto
authors.forename: Hiromu K
authors.initials: HK
authors.lastname: Mishima
mesh_terms: D000328:Adult; D003198:Computer Simulation; D003315:Cornea / Q000502:physiology*; D004548:Elasticity; D005260:Female; D006245:Hardness Tests / Q000379:methods*; D006801:Humans; D007429:Intraocular Pressure / Q000502:physiology*; D008297:Male; D008954:Models, Biological; D010812:Physical Stimulation / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013314:Stress, Mechanical; D014065:Tonometry, Ocular / Q000379:methods*