Physica Medica: European Journal of Medical Physics
Volume 23, Issue 2 , Pages 80-84, June 2007

Dynamics of tear fluid components transportation through contact lenses

Faculty of Physics, Division of Optics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland

Received 7 April 2006; received in revised form 26 March 2007; accepted 28 March 2007. published online 26 May 2007.

Abstract 

The interference optical method has been applied to monitor the transportation of Na+ and Cl− in solution through new and used contact lenses. The phenomenon of passive transportation (simple diffusion), induced by differences in osmotic pressure on both sides of the contact lenses has been discussed. Permeability coefficient of contact lenses of different optical power: −2.75D and −3.75D has been calculated.

Keywords: Contact lenses, Permeability, Jamin interferometer

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PII: S1120-1797(07)00013-0

doi:10.1016/j.ejmp.2007.03.004

Physica Medica: European Journal of Medical Physics
Volume 23, Issue 2 , Pages 80-84, June 2007

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