Smart contact lens using passive structures

Abstract

The surface of our eye is an interesting chemical interface, which acts like a window into the human body. For example, intraocular pressure is a surrogate marker of cardiovascular health. Just like the blood, the eye tear contains many health parameters which could be used to diagnose. Therefore, a contact lens with integrated biosensors could provide health professionals with a new tool for research studies and for diagnosing diseases in a novel way without traditional lab works. For this reason, the smart multi-purpose contact lenses have recently attracted attention. Motivated by this fact, we aim to integrate biosensors on contact lens to sense the eye tear film solution. In this work we aim to report the patterning of gold electrodes on PDMS. The micro-fabrication techniques are discussed together with various characterization techniques performed on the electrode patterns.