Quality Optical Blue Light Lenses
Light is more complicated than it looks, some that we can’t see. In the visible spectrum of light, the color of the light (rainbow or the separated light from a prism) is always the same, red, orange, yellow, green, blue, indigo, and violet. There is also a spectrum that we can’t see. Black and white are a bit different from other colors. White is a combination of all colors, so when we see white, the object is reflecting all the colors of light the same. Black is the opposite. When we see a black object that means almost all the colors of light are being absorbed.
Being outside, turning on the lights, or turning on your monitor exposes you to many different frequencies of light that you cannot see. Such an example (on the UV sprectrum) would be the sunlight that causes your skin to burn, it’s because light in this spectrum has higher energy. Blue light is often called blue-violet or violet light, these rays can cause a condition called photokeratitis or sunburned eyes. Approximately one-third of all visible light is considered high-energy visible (HEV) or “blue” light.
Blue light is present in sunlight and is the main source of blue light, and being outdoors during daylight is where we get most of our exposure. Indoor sources of blue light, including fluorescent and LED lighting and flat-screen televisions also contain blue light.
Our eyes do not protect themselves very well from blue light, this why 100% UV protected sunglasses are recommended. As we already know, blue light exposure can cause macular degeneration, which you would recognize as a worsening of your vision.
Blue light also contributes to eye strain, which is also present when viewing LED and flat screen and now phones. That’s right, your iPhone, Samsung, or otherwise likely produce this. Lenses that filter blue light may prolong your vision and may allow you to look at these screens for longer amounts of time without experiencing premature eye strain.
The professionals at Quality Optical can help. Ask us.
245 Danforth Avenue