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VUV-photon Induced Formation of Hydrophilic and Hydrophobic Micro Domains Structure on Intraocular Lens Surface for Blocking after Cataract

  • Yuji Sato (a1), Kenji Kawai (a2), Mikio Sasoh (a3), Hiroaki Ozaki (a4), Takeo Ohki (a5), Hiroshi Shiota (a6) and Masataka Murahara (a7)...

Abstract

A micro domain structure, which hydrophilic and hydrophobic groups were arrayed alternately, was formed on the surface of an intraocular lens [IOL] by using ultra violet rays [VUV]. With this technique, the IOL that is free from fibrin has been developed. In order to substitute the hydrophilic groups in matrix-form on the surface, an ArF laser light was then irradiated on the hydrophobic surface in the presence of water for the −OH groups, through the 50-micrometer dot-patterned reticle. With this selective photochemical surface modification, the hydrophilic and hydrophobic groups were arrayed alternately on the sample surface. The modified IOL was soaked in 0.1-wt % fibrin solutions, and the fibrin-sticking rate was measured by using an infrared spectroscopy [FT-IR]. It results that the absorption coefficient of amide band reached to 0.0006, decreasing to one-six of non-treatment sample's.

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Keywords

VUV-photon Induced Formation of Hydrophilic and Hydrophobic Micro Domains Structure on Intraocular Lens Surface for Blocking after Cataract

  • Yuji Sato (a1), Kenji Kawai (a2), Mikio Sasoh (a3), Hiroaki Ozaki (a4), Takeo Ohki (a5), Hiroshi Shiota (a6) and Masataka Murahara (a7)...

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