Journal of the Japanese Society for Experimental Mechanics
Print ISSN : 1346-4930
ISSN-L : 1346-4930
Original Papers
Influence on Lens Diopter of the Shape Change by the Soft Contact Lens Wearing
Satoshi KAKUNAIYusuke KURIYAMAHiroki IZUMIKazuki MATSUMOTOMasaru HIGAMasayoshi ABOHiroshi KANEKO
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2016 Volume 16 Issue 1 Pages 66-70

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Abstract
   Recently, a study to evaluate the optical properties of wearing CL has begun to improve the quality of vision. The soft contact lens (SCL) consists of an optics region, intermediate region and bevel, which improves the wearing feeling mainly. Because soft contact lens is composed of a soft material, it is deformed along the cornea when it is worn on the eye. In the present report, the shape of the commercial SCL is measured firstly by the light-section method. Then, the shape change of wearing SCL is calculated using a finite element method. At the end, influence on the lens diopter of the shape change of the SCL was investigated by CODE V. As a result, the focal length shortened by a shape change of SCL, and in the case of a lens of -6 Diopter, the lens changed than the diopter unit (0.25D) of production.
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© 2016 The Japanese Society for Experimental Mechanics
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