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KMID : 1011420100150030257
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Journal of Korean Ophthalmic Optics Society
2010 Volume.15 No. 3 p.257 ~ p.262
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Development of a Calculating Program for the Prism Power Influencing to Binocular Vision according to Shift of Binocular Visual Points in the Distance Vision Spectacles
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Lee Dong-Hee
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Abstract
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Purpose: Developing a calculating program for the prism power which influenced the binocular vision according to shifts of binocular visual points in the distance vision spectacles.
Methods: By using the Delphi 6.0 programming language, we developed a calculating program of the relative binocular prism power according to the movements of binocular visual points in the distance vision spectacles, which was calculated by dragging the mouse along the traces of binocular visual points on the computer window.
Results: We developed a calculating program for the relative binocular prism power according to the movements of binocular visual points in the distance vision spectacles. The user of the program could confirm the trace of visual points by allowing them to display the trace of binocular visual points on the computer screen with a mouse button. An application on confirming the variation of prism power by graphs in the program also allowed the user to use the program more conveniently.
Conclusions: By using the developed program, the user could easily calculate the relative binocular prism power according to shifts of binocular visual points in the distance vision spectacles. We also found that the developed program helped the user to receive a lot of assistance in analyzing the asthenopia.
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KEYWORD
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Distance vision spectacles, Prism power, Shift of binocular visual point, Asthenopia
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