Back in the 1960s when mainframe computers filled entire rooms, the idea of sticking a computer in someone’s eye would likely have sounded ridiculous–but that’s just what scientists are planning to do. Researchers have unveiled an implantable computer system that’s meant to monitor glaucoma patients’ eye pressure.
The University of Michigan researchers say it’s officially the world’s smallest computer. Measuring less than 0.04 inches long (or a little over one cubic millimeter), the entire computer packs a lot into a little space: It has a pressure sensor, a low-power microprocessor, a wireless radio and antenna that sends information to an external device, a battery, and a solar cell to charge the battery. It can store information for up to a week, and the system can link with other devices to form networks of wireless sensors.
According to Live Science, millimeter-scale computers are a new technological frontier: