1. 2004 Annual report;Barr;Contact Lens Spectrum,2005
2. Barr JT. Annual Report 2003. Contact Lens Spectrum January 2004. http://www.clspectrum.com/articleviewer.aspx?articleid=12492. Visited on 21 June, 2012.
3. Increase use of contact lenses for optical correction;Paudel;Journal of Institute of Medicine,2006
4. Decreased mucin concentrations in tear fluids of contact lens wearers;Yasueda;Journal of Pharmaceutical and Biomedical Analysis,2005
5. The effect of contact lens wear on dynamic ocular surface temperature;Purslow;Contact Lens and Anterior Eye,2005