What Is Blue Light? The Electromagnetic Spectrum

All light, including blue light, is made up of electromagnetic particles that travel through the air to our body in waves. These waves emit energy and depending on the colour, the strength and range of the light can differ. A shorter wavelength is associated with higher energy levels. The unit of measure for light is nanometres (nm) with 1 nanometre equalling just 1 billionth of a meter. Grouped up these items create the electromagnetic spectrum, but only some of these are visible to us.Electromagnetic Wavelengths- Gamma Rays- X-Rays- Ultraviolet (UV) Rays- Visible Light- HEV Light (High Energy Visible)- Infrared Light-

Read More
Share :

Blue Light (High-Energy Visible) and Blue Light Blocking Glasses

The eye’s cornea and lens are unable to filter or deflect Blue Light. Photochemically-induced retinal injury is caused by the absorption of light by photoreceptors in the retina. Photoreceptors such as rod cells, cone cells & photosensitive ganglion cells convert light into electrical signals in the eye. Normally, when light hits a photoreceptor, the cell bleaches and becomes ineffectual until it has recovered through a metabolic process called Wald’s visual cycle. This visual cycle is the biological process which converts photons, such as electromagnetic radiation (UV light & Blue Light) into electrical signals in the retina. When the retina is

Read More
Share :