The Low Energy Neurofeedback System (LENS) was developed in the early 1990s by Len Ochs, PhD, a northern California psychologist. LENS was created as an alternative to medication for brain-based problems and is often used along with psychotherapy. LENS is a computer-based software program that is connected to an EEG box, which measures brainwaves. LENS directly stimulates biochemical changes that are thought to help the brain regulate itself.