Introduction
Our eyesight is critical throughout our lifetime. Light is both harmful and beneficial to vision and health. People of all ages are overexposed to blue light due to electronic gadgets from computers to smartphones. Also we are exposed to the blue light when we are outside all year round by the sun. A number of solutions are available for blue light protection by getting a blue blocker or filter the blue light.
Task
What is a blue light?
How can we be protected from blue light?