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Japanese

Calculation of the volume of human lens using 3-dimensional image Kiyoyuki Majima 1 , Kei Ichikawa 2 , Yukihiro Sakai 3 , Naohisa Naitou 3 , Naoki Isogai 4 , Takahiro Kataoka 4 , Tomoaki Nakamura 4 , Kazuo Ichikawa 3 1Eye Clinic Myouganin 2Gifu Red Cross Hospital 3Chukyo Eye Clinic 4Nagoya Eye Clinic pp.343-348
Published Date 2016/3/15
DOI https://doi.org/10.11477/mf.1410211733
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Abstract Purpose: After measuring the anterior and posterior diameters of the human lens, the diameter of the equatorial portion and the external periphery of the transverse surface of the normal eye, we calculated the volume of the lens as an imperfect ellipsoid.

Case and Method: The axial length was 24.21 mm in the right eye of a 23-year-old woman. Using an ultrasound biomicroscope, the lens was photographed from 4 directions.. After measuring the anterior and posterior diameter, the equatorial diameter and outer periphery, the volume of the lens as imperfect ellipsoid was determined with a Hira STL viewer after modeling to make a 3-dimensional image.

Results: After modeling with the 3-dimensional image, the volume of the imperfect ellipsoid was 0.1057 cm3.

Conclusion: Thus, after constructing it from 3-dimensional image analysis as an imperfect ellipsoidal lens, we considered this method for virtually accurate estimation of volume could be effective for measurement of the volume of a lens of a normal eye.


Copyright © 2016, 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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