“This contact lens allows us to differentiate those who were progressing faster from those who were stable,” Dr. C. Gustavo De Moraes explained. Patients wear a wireless device that sends a readout to the ophthalmologist. Doctors said the ultimate goal of the smart lens technology is to help monitor patients continuously, day and night. “We have no way of measuring pressure at night at the moment. We are missing critical pieces of information to help us make decisions,” Dr. Jeffrey Liebmann said.