Surface Properties of Ocular Prostheses Material Change under UV Influence

IFMBE Proceedings. Vol.37: 5th European Conference of the International Federation for Medical and Biological Engineering 2012
Jurijs Dehtjars, Linda Lancere, Nataļja Poļaka, Fjodors Tjuļkins, Valdis Valters

Poly methyl metha acrylate (PMMA) is widely used for eye prostheses and contact lenses. These devices are worn outdoors and, therefore, exposed to the ultraviolet radiation of Sun. This may cause changes in PMMA properties and bring discomfort to the patient, for instance, because of polymer surface wettability alteration. Namely, alteration of wettability of PMMA due to ultraviolet radiation and correlation of wettability with other surface properties is under the focus of the present research. Wettability of PMMA changes due to UV irradiation in irregular manner. Besides, good correlation existed between wettability, electron work function and peculiarities of the absorption spectra of PMMA

Keywords
UV radiation, PMMA, wettability, surface charge
DOI
10.1007/978-3-642-23508-5_272
Hyperlink
http://link.springer.com/chapter/10.1007/978-3-642-23508-5_272

Dehtjars, J., Lancere, L., Poļaka, N., Tjuļkins, F., Valters, V. Surface Properties of Ocular Prostheses Material Change under UV Influence. In: IFMBE Proceedings. Vol.37: 5th European Conference of the International Federation for Medical and Biological Engineering, Hungary, Budapest, 14-18 September, 2011. Berlin: Springer Berlin Heidelberg, 2012, pp.1047-1049. ISBN 978-3-642-23507-8. e-ISBN 978-3-642-23508-5. ISSN 1680-0737. Available from: doi:10.1007/978-3-642-23508-5_272

Publication language
English (en)