Study on Characterization of Contact Lens with Hydrophobic Monomers

소수성 모노머들을 포함한 콘택트렌즈의 특성에 관한 연구

  • Ye, Ki-Hun (Department of Ophthalmic Optics Daebul University) ;
  • Kim, Tae-Hun (Department of Ophthalmic Optics Daebul University) ;
  • Sung, A-Young (Department of Ophthalmic Optics Daebul University)
  • 예기훈 (대불대학교 안경광학과) ;
  • 김태훈 (대불대학교 안경광학과) ;
  • 성아영 (대불대학교 안경광학과)
  • Received : 2008.07.31
  • Accepted : 2008.09.10
  • Published : 2008.09.30

Abstract

Purpose: In this study, we compared the physical properties of the compositions that were mixed with basic materials of HEMA (2-Hydroxyethyl methacrylate)/Silicone and BMA (Butyl methacrylate), MMA (Methyl methacrylate) by making the silicone contact lens. Method: Each sample of contact lenses was fabricated by cast mould method. We analyzed results by using average values of physical property of each sample. Results: In the composition of HEMA/Silicone/BMA, water contents of samples showed the value from 24.69% to 29.26%. Ultimate strength of samples showed the value from 0.109 kgf to 0.263 kgf. In the composition of HEMA/Silicone/MMA, swelling ratio of samples showed the value from 13.56% to 14.83%. Water contents of samples showed the value from 25.61% to 29.33%. Ultimate strength of samples showed the value from 0.107 kgf to 0.286 kgf. Conclusions: The compositions of percents of silicone were ranged from 0.20% to 11.50% and the composition percent of BMA and MMA was 5.15% in total. Swelling ratio and water contents increased with decreasing of BMA (Butyl methacrylate) and MMA (Methyl methacrylate) percent. In the composition of HEMA/Silicone/MMA, the values of ultimate strength increased with increasing of silicone percent to 4-MMA sample. In the composition of HEMA/Silicone/BMA, the values of ultimate strength decreased with increasing of silicone percent.