How Blue light Works

Firstly, blue light is associated with our circadian rhythm due to its impact on melatonin production, the hormone responsible for regulating our sleep-wake cycles. Evening exposure to blue light can inhibit melatonin production, making it more difficult to fall asleep and disrupting our natural sleep patterns.

Secondly, blue light has a short wavelength, which means it penetrates the eyes rapidly, allowing most blue light to pass through the cornea and lens directly to the retina (the layer at the back of the eye). Although research is still limited, some experts suggest that prolonged exposure to blue light could potentially damage the retina's light-sensitive cells. An animal study has also indicated that blue light might cause phototoxic damage to the retina.

Blue light is a part of the visible spectrum, characterized by its short wavelength and high energy. The sun is the primary source of blue light exposure, but artificial sources are also prevalent, particularly in digital screens. Devices like computers, tablets, and smartphones emit blue light, which has become a point of concern due to the amount of time we spend using them and their close proximity to our eyes. This has led to growing worries about the potential long-term impact of blue light on eye health.

Blue light glasses, sometimes referred to as blue light blocking glasses or computer glasses, are equipped with specialized lenses designed to minimize the amount of blue light that reaches the eye. These lenses are engineered to filter out blue light rays, thereby reducing the quantity of such light that penetrates the eye. By blocking a significant portion of blue light, these glasses aim to mitigate potential visual discomfort and protect against possible damage that prolonged exposure to blue light could cause.