Tear Analysis from a Contact Lens
February 9, 2021 | Terry Sharrer
“Researchers at the Terasaki Institute in Los Angeles have developed a prototype of a contact lens that can assist with tear sampling for diagnostic purposes, and to also improve tear flow to potentially prevent dry eye disease. The hydrogel lens contains microchannels through which tears can travel and testing chambers where electrochemical and colorimetric tests can assess sodium levels and pH, respectively. Tears are a promising source for biomarkers, as they often contain levels of various analytes that are similar to those found in the blood. Examples of clinically relevant indicators found in tears include sodium, which can indicate dry eye disease, and glucose, a marker of diabetes.” MORE
Image Credit: Terasaki Institute and MedGadget.com