Understanding Harmful Blue Light in a group of Thai People

Blue light is the light that harmful to health in the long term. Understanding the dangers of blue light could prevent blue light hazards. This study aims to understand the basic knowledge and dangers of blue light. How it could harm people during using computers, tablets, and smartphones as well as to assess the level of knowledge about the usage and dangers of blue light. A questionnaire was used to study the behavior of electronic device users. 150 participants answered the questionnaire about personal information, the dangers of blue light, and the blue light prevention. The results showed that majority of participants have the basic understanding about blue light. People in age range 18-30 years old are most damaged by blue light more than people age 15-17 years old and 31-60 years old respectively. If the people do not protect their eyes, they might have blurred vision or in the worst case they might lose their vision.