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A Study on Modeling the Accommodation of the Human Eye for Science Education
New Phys.: Sae Mulli 2017; 67: 1473~1487
Published online December 29, 2017;
© 2017 New Physics: Sae Mulli.

Donggeul HYUN1, Hunkoog JHO*2

1 Department of Science Education, Teachers College, Jeju National University, Jeju 63294, Korea
2 Department of General Education, Dankook University, Cheonan 31116, Korea 
Correspondence to:
Received September 15, 2017; Revised October 8, 2017; Accepted October 10, 2017.
cc This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
In this study, the researchers constructed a model related to the structure and the function of the eyeball based on paraxial optics in order to apply the model in the classroom to help students understand how the eye works. This study intended to use physical variables to explain the ocular movements for vision. The thickness, refractive power, focal length and cardinal planes of the crystalline lens, as well as the distance between the cornea and the crystalline lens, were expressed as functions of the radius of the first spherical surface of the contracted crystalline lens. Further, the process of ocular movements was explained by using the function. The researchers also examined the validity of the developed model by verifying that the focal length of an eye was equal to the distance between the image and the object while the ocular muscles were dilatated.
PACS numbers: 01.40.Fk, 42.15.-i
Keywords: Eye, Accommodation, Crystalline lens, Paraxial optics, Model

December 2017, 67 (12)
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