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2018 Vol.28, Issue 12 Preview Page
Comparative Study of Polymerization Environment for Hydrogel Ophthalmic Lens
Duck-Hyun Kim
,
A-Young Sung†
Department of Optometry & Vision Science, Catholic University of Daegu, Gyeoungsan, Gyeoungbuk 38430, Republic of Korea
†Corresponding author : E-Mail : say123sg@hanmail.net (A. Y Sung, Catholic Univ. of Daegu)
December 2018. pp. 696-701
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Abstract

This study is carried out to evaluate the commercial feasibility of the room temperature and thermal polymerization method as a lens manufacturing method. All samples are found to be transparent after polymerization, thereby indicating that their physical and surface properties are suitable for hydrogel ophthalmic lenses. The optical and physical properties of the lenses are compared. The water content of the samples that are prepared via a room temperature polymerization process decreases with the addition of MMA as compared to the water content of the samples that are prepared via thermal polymerization. When MMA and DMA are used as an additive for improving functionality, the wettability of the lenses increases. By measuring the AFM, the surface roughness is shown to improve more than MMA and DMA. Therefore, it is judged to be an appropriate process for manufacturing hydrogel lenses with high functionality.

Keywords
thermal polymerization
room temperature polymerization
water content
wettability
ophthalmic lenses
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Information
  • Publisher :Materials Research Society of Korea
  • Publisher(Ko) :한국재료학회
  • Journal Title :Korean Journal of Materials Research
  • Journal Title(Ko) :한국재료학회지
  • Volume : 28
  • No :12
  • Pages :696-701
  • Received Date : 2018-07-11
  • Revised Date : 2018-09-03
  • Accepted Date : 2018-12-04
  • DOI :https://doi.org/10.3740/MRSK.2018.28.12.696
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