J024025 ソフトコンタクトレンズ装用時のレンズ形状変化による光学特性([J024-02]音・光とバイオメカニクス)

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タイトル別名
  • J024025 Optical properties by the lens shape change during soft contact lens wearing

抄録

A contact lens (CL) is medical equipment correcting refraction abnormalities such as myopia, hyperopia and astigmatism. Recently, a study to evaluate the optical properties of wearing CL has begun to improve the quality of vision. However, it is hardly studied the shape change of CL affecting the optics properties. In particular, because a soft contact lens (SCL) is soft material, it is thought that the deformation behavior of wearing CL influences optics properties. In this study, the shape change of wearing SCL is calculated using a finite element method and the optical properties were evaluated using an optics design evaluation soft "CODE V". Following results were mainly obtained. (1) The front curve value of commercial SCL was decided by an eye model. (2) The shape change of SCL ocurred along the cornea and slightly warped at the bevel by wearing SCL. (3) The defocus aberration and the lens diopter slightly increased by wearing SCL.

収録刊行物

  • 年次大会

    年次大会 2013 (0), _J024025-1-_J024025-4, 2013

    一般社団法人 日本機械学会

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