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.

Abstract
 1. Introduction
 2. Experimental
  2.1 Reagents and Materials
  2.2 Experimental Method
  2.3 Measuring Instruments and Analysis
 3. Results and Discussion
  3.1 Polymerization and Manufacturing
  3.2 Physical properties
  3.3 Surface Properties
 4. Conclusion
 References

• Duck-Hyun Kim(Department of Optometry & Vision Science, Catholic University of Daegu)
• A-Young Sung(Department of Optometry & Vision Science, Catholic University of Daegu) Corresponding author