We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Manufacture of Contact Lens of Nanoparticle-Doped Polymer Complemented with ZEMAX.
- Authors
Shaker, Lina M.; Al-Amiery, Ahmed A.; Kadhum, Abdul Amir H.; Takriff, Mohd S.
- Abstract
Many people suffer from myopia or hyperopia due to the refractive errors of the cornea all over the world. The use of high refractive index (RI), Abbe number (νd), and visible light transmittance (T%) polymeric contact lenses (CLs) holds great promise in vision error treatment as an alternative solution to the irreversible laser-assisted in situ keratomileusis (LASIK) surgery. Titanium dioxide nanoparticles (TiO2 NPs) have been suggested as a good candidate to rise the RI and maintain high transparency of a poly(methyl methacrylate) (PMMA)-TiO2 nanocomposite. This work includes a preparation of TiO2 NPs using the sol gel method as well as a synthesis of pure PMMA by free radical polarization and PMMA-TiO2 CLs using a cast molding method of 0.005 and 0.01 w/v concentrations and a study of their effect on the aberrated human eye. ZEMAX optical design software was used for eye modeling based on the Liou and Brennan eye model and then the pure and doped CLs were applied. Ocular performance was evaluated by modulation transfer function (MTF), spot diagram, and image simulation. The used criteria show that the best vision correction was obtained by the CL of higher doping content (p < 0.0001) and that the generated spherical and chromatic aberrations in the eye had been reduced.
- Subjects
CONTACT lenses; LASIK; TRANSFER functions; TITANIUM dioxide nanoparticles; MANUFACTURED products; BENZALKONIUM chloride
- Publication
Nanomaterials (2079-4991), 2020, Vol 10, Issue 10, p2028
- ISSN
2079-4991
- Publication type
Article
- DOI
10.3390/nano10102028