Exposure to the blue light emitted from screens--phones, and computers—can cause eye strain, fatigue and dry eyes. Blue-light blocking glasses have filters in their lenses that block or absorb blue light to keep screen time comfortable.

that a child's retina is 100% more sensitive to blue light than an adult's? Overexposure to high-frequency blue light from computer screens and digital devices can cause disturbed sleep, irritation and dry eyes, and behavior problems.