Today Mojo announced “the first major third-party consumer application on a smart contact lens,” with the introduction of Alexa Shopping List integration. This is still very much a test — a proof of concept, really — designed to demonstrate what something like a shopping list might look like on a contact lens-based computing interface.

The implementation utilizes Alexa voice computing to add or remove items to the list, which pop up in the HUD interface while shopping. The user can futher navitate through the list with their eyes — and check items off when they’re in the cart. If a family member adds an item to the list remotely, it will pop up in the Mojo interface.

If nothing else, the test feature demonstrates how additional interfaces like voice computing can be used to augment the limitations of this eyeball-based computing. Attempting to enter new items using the eye sounds like a bit of a nightmare, but that interface certainly makes sense for simpler tasks, like scrolling.

Amazon’s team helped Mojo implement Alexa Shpping for the test feature.

“At Amazon, we believe experiences can be made better with technology that is always there when you need it, yet you never have to think about it,” Alexa Shopping List GM Ramya Reguramalingam said in a release. “We’re excited that Mojo Vision’s Invisible Computing for Mojo Lens, paired with the demonstration of Alexa Shopping List as a use case, is showing the art of what’s possible for hands-free, discreet smart shopping experiences.”

Mojo Vision is still reasonably cautious around whether or not such functionality is actually arriving. The company notes in the release, “The test integration shows how Mojo Vision could integrate the Alexa voice AI with Mojo Lens’ unique and powerful eye-based interface.”

A demo of the technology debuted onstage today at a Wall Street Journal event in Southern California.