Eye stiffness measurement by probe contact method.
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.
Kurita
Yuichi
Y
Graduate School of Engineering, Hiroshima University, Japan. kurita@hfl.hiroshima-u.ac.jp
Kempf
Roland
R
Iida
Yoshichika
Y
Kaneko
Makoto
M
Sugimoto
Eiichiro
E
Tsukamoto
Hidetoshi
H
Mishima
Hiromu K
HK
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*