PROBLEM TO BE SOLVED: To enable a wearer to especially protect their eyes and remove and eliminate fatigue in their eyes while performing tasks in daily life.SOLUTION: There is provided a visual acuity correction instrument having a transparent magnetic material layer comprising a magnetic material formed into nanoparticles formed on the surface of a lens, where the transparent magnetic material layer blocks at least part of blue light having a wavelength of 380 to 500 nm and a D-line having a wavelength of 589 nm, and can form a magnetic field in the vicinity of the surface of the lens to supply oxygen and water containing oxygen to the eyeballs.SELECTED DRAWING: Figure 6COPYRIGHT: (C)2017,JPO&INPIT【課題】日常生活、業務等を行いながら、特に目の安全と目の疲労軽減し除去すること。【解決手段】ナノ粒子化した磁性材料からなる透明磁性体層がレンズ表面に形成されており、該透明磁性体層は、波長380~500nmのブルーライトおよび波長589nmのD線の少なくとも一部を遮光すると共に、レンズ表面近傍に磁場を形成して眼球に酸素および酸素を含む水分を供給可能にされてなることを特徴とする視力矯正機具。【選択図】図6
