Expert (IMAGE) MediaSource Caption UCLA Health neurosurgeon Dr. Nader Pouratian points to an experimental device in the brain. The implant restores blind patients' ability to detect motion and light, increasing their independence and ease at navigating the world. Credit UCLA Health Usage Restrictions All multimedia is available for free and unrestricted media use with courtesy to UCLA Health. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.