This "small" computer was designed for curing glaucoma (a series of eye disorders that lead to
damaging the optic nerve that carries visual information from the eye to the brain):
Measuring in at just over 1 cubic millimeter, the computer features an ultra low-power microprocessor, pressure sensor, memory, thin-film battery, a solar cell and a wireless radio with an antenna that can communicate with an external reader. In all, it consumes only 5.3 nanowatts, requires 1.5 hours of sunlight to charge the battery, and can store up to a week's worth of information.
This specific computer will be targeted towards glaucoma patients. The computer, a pressure monitor, is designed to be implanted in the eye and can continuously track the progress of glaucoma.