Electromagnetic Wave Blocking Effect of Ophthalmological Hydrophilic Lenses Material Containing Indium Tin Oxide Nanoparticles

摘要： PEGMEMA was applied as an additive in the primary polymerization, which resulted in the higher water content and wettability of ophthalmological hydrophilic lenses. ITO (indium tin oxide) is highly electroconductive, and it is possible to use thin ITO to create a transparent protective film in various field. The use of 2,4-dihydroxybenzophenone as an additive in the secondary polymerization provided the hydrogel lenses with the feature of blocking ultraviolet rays. Also, ITO nanoparticles were added to the lenses materials during the tertiary polymerization to shield the wearers from the electromagnetic wave. When PEGMEMA, 2,4-dihydroxybenzophenone, and ITO nanoparticles is used as additives, it is possible to manufacture high-functional ophthalmological hydrophilic lenses with the features of high water content, high wettability, and ultraviolet ray and electromagnetic wave blocking effect.