An electronic eye implant, thinner than a strand of human hair, is raising hope for millions of older people struggling with vision loss. Scientists say they have developed this eye implant and augmented reality glasses that turn video information into electrical waves sent to a patient's brain. ABC News' medical correspondent Dr. Darien Sutton explains how the technology works. | ABC News Live

Successful business man in suit walks down street in financial district and smoke electronic cigarette. Confident 50 years old male walk on city street with vape device. Health effects of nicotine and Stock Video

Vaping vs. Smoking: Is One Really Safer Than the Other?