Vision Improvement Using Titanium Dioxide Nanoparticles-Doped PMMA for Contact Lenses

Shaker, Lina M.; Al-Hamdani, Ali H.; Al-Amiery, Ahmed A.

doi:10.30684/etj.v38i5A.327

	Vision Improvement Using Titanium Dioxide Nanoparticles-Doped PMMA for Contact Lenses
Engineering and Technology Journal
Article 6, Volume 38, 5A, 2020, Pages 681-689 PDF (582.83 K)
DOI: 10.30684/etj.v38i5A.327
Authors
Lina M. Shaker^* ¹; Ali H. Al-Hamdani¹; Ahmed A. Al-Amiery²
¹Laser and Optoelectronics Engineering Department, University of Technology-Iraq.
²University of Technology-Iraq.
Abstract
Polymer-based nanocomposites exhibit various optical virtues such as a high refractive index (RI), the dispersion index (Abbe number (νd)) and visible light transmittance (T %) about 95-99%. Titanium dioxide nanoparticles (TiO2 NPs) is suggested as a good candidate to rise the RI and maintain high transparency when it is integrated with Poly(methyl methacrylate) polymer PMMA because TiO2 NPs have a high RI (2.45 and 2.7 for anatase and rutile phase, respectively). The ocular performance was evaluated by modulation transfer function (MTF) and image simulation. The used criteria show that the best visual performance is obtained when TiO2-PMMA-CL of 0.1 wt/volume of TiO2 NPs is used (P < 0.0001) which reduced the generated spherical and chromatic aberrations inside the eye
Keywords
Contact lens; image simulation; modulation transfer function; nanomaterial; TiO2-PMMA

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