Comparison of biomaterials used in contact lenses based on water content analysis with terahertz spectroscopy

The selection of biomaterials used for contact lens fabrication is crucial to increase the biocompatibility of contact lenses as a means to extend the wearing time and comfort. The assessment of in vitro dehydration of contact lenses made from different materials with terahertz (THz) time-domain spectroscopy and optical coherence tomography (OCT), provides a new index to assess their water content.