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A prototype of ultrasonic corneal pachometer Natsushi Nakagawa 1 , Hideyuki Hayashi 1 1Dept of Ophthalmol, Fukuoka Univ Med Sch pp.1638-1640
Published Date 1995/10/15
DOI https://doi.org/10.11477/mf.1410904456
  • Abstract
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We developed a prototype of corneal pachometer which utilizes ultrasound with variable sound velocity between 1400 and 2000 m/s. It allows measurement of corneal thickness within the accuracy of 5 μm. We measured the corneal thickness in 20 healthy eyes and compared the obtained values with those by another ultrasonic pachometer DGH-500. We obtained the correlation coefficient of 0.9929 and the linear regression Y=0.965X+14.8 μm, where the Y stands for the value of our prototype and X for DGH-500. The values by the two methods were in close agreement, suggesting the usefulness of out prototype.


Copyright © 1995, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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