In order to maximize the function and increase the compatibility of silicone hydrogel lens, this study compared and analyzed the properties of Amino modified silicone oil using mini and microemulsion technique, respectively. Optical and physical properties were evaluated by spectral transmittance, refractive index, water content, oxygen transmittance and contact angle measurements to evaluate the performance of the manufactured hydrogel lens. The spectral transmittance results revealed the copolymerization method lens showed 31 % of the visible light area, which did not satisfy the basic optical properties. However, the lens using the mini and microemulsion materials showed more than 90 % of the visible light area, satisfying the optical characteristics. In addition, all physical properties were superior to a basic hydrogel lens. The mini and microemulsion techniques effectively improved the stability and function of the ophthalmic hydrogel lens and are considered a promising ways of manufacturing an ophthalmic hydrogel contact lens with increased compatibility and stability.

1. Introduction
2. Experimental Procedure
    2.1. Reagents and materials
    2.2. Preparation of miniemulsion
    2.3. Preparation of microemulsion
    2.4. Polymerization
    2.5. Measuring instruments and methods
3. Results and Discussion
    3.1. Analysis by SEM
    3.2. Spectral transmittance
    3.3. Refractive index and water content
    3.4. Oxygen permeability
    3.5. Contact angle and AFM analysis
    3.6. Polymerization stability
4. Conclusion
References
Author Information

• Hye-In Park(Department of Optometry & Vision Science, Daegu Catholic University, Gyeongsan 38430, Republic of Korea)
• A-Young Sung(Department of Optometry & Vision Science, Daegu Catholic University, Gyeongsan 38430, Republic of Korea) Corresponding author