Biological effects of high-energy visible light

High-energy visible (HEV) light, also known as blue light, is a type of light with wavelengths between 400-490 nm. It is emitted by a range of sources, such as the sun, computer screens, smartphones, and LED lighting.

Exposure to HEV light has been linked to a range of biological effects, including:

* Disruption of circadian rhythm: Exposure to HEV light at night can suppress the production of melatonin, a hormone that regulates sleep-wake cycles.

* Eye strain and discomfort: HEV light can contribute to eye strain, discomfort, and dryness, particularly with prolonged exposure.

* Retina damage: HEV light has been linked to damage to the retina, the light-sensitive tissue at the back of the eye.

* Skin damage: HEV light can penetrate deeper into the skin than other types of light, and has been linked to skin damage and premature aging.

Some of the strategies for reducing exposure to HEV light include:

* Reducing screen time: Limiting the amount of time spent looking at computer screens, smartphones, and other electronic devices.

* Screen filters: Using screen filters or anti-glare coatings on electronic devices to reduce the amount of HEV light emitted.

* Protective eyewear: Wearing blue-light-blocking glasses or lenses to reduce the amount of HEV light that reaches the eyes.

* Adjusting lighting: Using warm or dim lighting at night and avoiding bright or cool lighting before bedtime.

Overall, HEV light is a relatively new area of research, and the long-term effects of exposure are not yet fully understood. However, by taking steps to reduce exposure to HEV light, individuals can help protect their eyes, skin, and overall health.

Biological effects of high-energy visible light