Physical Properties Assessment of Soft Contact Lens with Halogen and Carboxylic Substituted Pyridine as Additive

할로겐과 카르복시산으로 치환된 피리딘 첨가제를 사용한 소프트 콘택트렌즈의 물성 평가

  • Received : 2015.05.01
  • Accepted : 2015.11.30
  • Published : 2015.12.31


Purpose: This study evaluated the optical and physical and characteristics of soft contact lens polymerized with addition of 3-chloropyridine-4-carboxylic acid and 3-fluoropyridine-4-carboxylic acid in the basic hydrogel contact lens material. In particular, the utility of 3-chloropyridine-4-carboxylic acid and 3-fluoropyridine- 4-carboxylic acid as a hydrogel contact lens material was investigated. Methods: In this study, 3-chloropyridine-4-carboxylic acid and 3-fluoropyridine-4-carboxylic acid were used as additives. Also, 2-hydroxyethyl methacrylate, acrylic acid, methyl methacrylate and a cross-linker EGDMA were co-polymerized in the presence of AIBN as an initiator. Results: The physical properties of the produced polymers were measured as followings. The water content of 34.54~37.15%, refractive index of 1.4320~1.4342, tensile strength of 0.2872~0.3608 kgf and contact angle of $57.82{\sim}79.57^{\circ}$, UV-B transmittance of 76.8~82.4% and UV-A transmittance of 84.6~86.6% were obtained respectively. Conclusions: Based on the results of this study, contact lens material containing 3-chloropyridine-4-carboxylic acid and 3-fluoropyridine-4-carboxylic acid is expected to be able to used as a material for high wettability and UV-block hydrogel contact lens.


3-Chloropyridine-4-carboxylic acid;3-Fluoropyridine-4-carboxylic acid;Wettability;UV-block


  1. Kang SA, Kim JH. Evaluation of Vision-Specific Quality of Life between Spectacles and Contact Lens Wearers. J Korean Ophthalmic Opt Soc. 2007;12(3):111-115.
  2. Dong EY, Kim EC. Results of Population-based Questionnaire on the Symptoms and Lifestyles Associated with Contact Lens. J Korean Ophthalmol Soc. 2001;42(1):30-35.
  3. Kim DH, Kim TH, Sung AY. Ophthalmic Application of Polymer with High Oxygen Transmissibility Containing 2-(trimethylsilyloxy)ethyl Methacrylate. J Korean Chem Soc. 2013;57(3):405-410.
  4. Kim DH, Sung AY. Application of hydroxy-substituted benzophenone group for UV-block soft contact lens. Korean J Vis Sci. 2015;17(1):57-68.
  5. Cho SA, Park SY, Kim Th, Sung AY. Characterization of physical properties of hydrogel contact lens materials containing 1,4-butanediol and ()-1,2,4-butanetriol for wettability improvement. Korean J Vis Sci. 2012;14(1):69-76.
  6. Kim TH, YE KH, Sung AY. Study on the Wettability of Cosmetic Color Contact Lenses. Korean J Vis Sci. 2010 12(2):119-125.
  7. Ahn SH, Choi GC, Beak YK, Kim YK, Kim YD. Effect of Carboxylic Acid on Optical Properties of CuInS2/ZnS Semiconductor Nanocrystals. J Korean Powd Met Inst. 2012;19(5):362-366.
  8. Seo MG, Kim SM, LEE DW, LEE KY. Effect of Pyridine on Toluene Diisocyanate (TDI) Synthesis Using Direct Carbonylation over $Pd/SiO_2$. J Korean Chem Eng Res. 2012;50(3):417-420.
  9. Kim YC. Studies on the Synthesis of Yellow Coupler and Color Development. J Korean Oil Chemists Soc. 2012; 29(1):116-121.
  10. Kim DH, Sung AY, Kim TH. Antibacterial and characterization of high performance soft contact lens using fluoroand carboxy-substituted pyridine as additive. Korean J Vis Sci. 2014;16(1):89-97.
  11. Kim TH, Sung AY. Study on the High-performance Lens Material Containing 4-Vinylpyridine. J Korean Chem soc. 2010;54(4):487-490.
  12. Kim TH. Sung AY. Study on the Ophthalmic Lens Materials with High Refractive Index Containing Vinylanisole. J Korea Chem soc. 2010;54(6):755-760.
  13. Kim DH, Kim TH, Sung AY. Study on Changes in the Physical Properties of Hydrogel Lens Depending on Ethylene Glycol Dimethacrylate. J Korean Chem soc. 2012; 56(1):169-174.
  14. Lee MJ, Sung AY, Kim TH. Influence of Wetting Agents on Physical Properties of Soft Contact Lens. J Korean Ophthalmic Opt Soc. 2014;19(1):43-49.
  15. Suh YS, Kim SH. UV-Cut Effects of Cotton Fabrics Treated with UV Absorbents. J Korea Society of Clothing and Textiles. 1994;18(5):622-627.

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