Consider giving a speech without looking down at your notes; instead, the words scroll in front of your eyes in any direction you look.

That is just one of many features that smart contact lens manufacturers claim will be available in the future. Steve Sinclair of Mojo is working on smart contact lenses. His company is about to start extensive testing on humans of smart contact lenses that will provide the wearer with a heads-up display that appears to float in front of their eyes. The scleral lens (a larger lens that extends to the whites of the eyes) in the product not only corrects the user’s vision but also includes a tiny microLED display, smart sensors, and solid-state batteries. He claimed that they had created a fully functional, wearable prototype. That will be put to the test internally very soon.

Smart lenses are being developed to collect health data. They can also provide extended-release drug delivery options, which can aid in diagnosis and treatment plans. It’s exciting to see how far technology has progressed and the potential it has to improve patients’ lives. Researchers are working to develop lenses that can diagnose and treat medical conditions ranging from eye conditions to diabetes and even cancer by tracking biomarkers such as light levels, cancer-related molecules, and the amount of glucose in tears.