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http://dx.doi.org/10.13160/ricns.2018.11.1.1

Hydrogel Contact Lens Materials with Improved UV Blocking Effect  

Kim, Duck-Hyun (Optometry & Vision Science, Catholic University of Daegu)
Sung, A-Young (Optometry & Vision Science, Catholic University of Daegu)
Publication Information
Journal of Integrative Natural Science / v.11, no.1, 2018 , pp. 1-8 More about this Journal
Abstract
HEMA, AA, MMA, and EGDMA as crosslinking agent and AIBN as an initiator, and 2,4-dihydroxybenzophenone, 2-ethylhexyl-trans-4-methoxy-cinnamate, 2-hydroxy-4-(methacryloyloxy)benzophenone as additives at 0.1-1.0% ratios were used to manufacture hydrophilic ophthalmic lenses through thermal polymerization before their physical properties were measured. The results showed that the samples containing of 2,4-dihydroxybenzophenone and 2-ethylhexyl-trans-4-methoxy-cinnamate resulted in a decrease of the UV blocking performance after high-pressure sterilization whereas the sample containing 2-hydroxy-4-(methacryloyloxy)benzophenone showed no change in the UV blocking performance. It is judged that this is induced by presence or absence of an acyl functional group in benzophenone.
Keywords
Benzophenone Group; Thermal Polymerization; Ophthalmic Hydrogel Lens; UV-block; Autoclaving;
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Times Cited By KSCI : 3  (Citation Analysis)
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