Blue light damage affects people at all ages, from infants to the elderly, and we all should consciously reduce screen time. Blue light damage has become a concern as children's screen time increases. The screen time guideline by World Health Organization (WHO) recommends children under 2 years old to be screen-free at all, and children aged 2 – 5 years old should be not more than 1 hour a day, less is better. When sedentary, engaging in reading and storytelling with a caregiver is encouraged.