Blue light is part of the visible light spectrum, existing within the 380 to 500 nanometer range. Approximately one-third of all visible light is considered high-energy visible, or "blue," light. While sunlight is a natural emitter of light, artificial sources of blue light include fluorescent lights, LED and LED televisions, computer monitors, smart phones and tablets.

Blue light from natural daylight boosts alertness, increasing cognitive function and elevating a person’s overall mood. After sunset, darkness causes the body to produce melatonin, signalling to the body that it is time to sleep. This is the regular circadian rhythm, the body's natural wake and sleep cycle. Exposure to blue light for children, tweens & teens, at night disrupts this process, reducing melatonin release and telling the brain that it is still daytime. Reduced melatonin makes it harder to fall asleep and contributes to poor sleep quality. Proper sleep patterns are essential for youngsters and can cause antisocial behavious, depression and a number of other issues. In addition, excessive exposure to artificial blue light can also lead to digital eye strain, irritation and headaches. Children are more vulnerable than adults because their eyes absorb more blue light from digital devices.

Artificial blue light is found in electronic devices and appliances that emits light which containing shades of blue, even if is not immediately apparent to the naked eye. Common sources include: Personal devices such as smart phones and tablets TV Screens including LCD, LED and Plasma displays Computer monitors and laptop screens LED lighting used in houses and commercial premises including strip lighting. Fluorescent lighting used in workshops, offices and industrial spaces Lights inside appliances including fridges and freezers

Kids should wear your blue light glasses if it is daylight outside but they are inside in artificial lighting conditions such as those found in a classroom or a library. Using blue light glasses in these conditions will reduce the amount of exposure from overhead lighting and electronic devices including device screens and smart boards.

Kids should wear blue light glasses when: watching LCD/LED/Plasma screens including during gaming Using electronic devices including computers, laptops, smart phones and tablets under LED lighting which is switched on.

Use the soft cloth provided to gently wipe the lenses on both sides. Over time you may notice a build-up on the lenses from skin oil, makeup or finger prints. To remove this you can wash the glasses in a bowl of tepid to warm water and diluted dishwashing detergent only. Immerse the glasses in the water and gently rub the lenses with a microfibre or soft cotton cloth until they are clear. Leave to air dry only. Do not use hot water, laundry or household cleaners including abrasives as this will damage the glasses.

Our blue light glasses come with a 6-month warranty for manufacturing defects only. We do not offer warranty for malicious or accidental breakage including scratches on lenses.