Google is seeking patents that detail ways to fit a camera into a contact lens without dramatically increasing its thickness.

Such an invention could have implications for health. For example, it could be used to help blind people capture imagery and data so that if they approach an intersection, their smartphone could sound off an alert. It also could be used to read chemicals in the tear fluid, alerting individuals with diabetes when blood sugar levels fall to dangerously low levels.

Read more on Google’s announcement below: