Matt antiglare medical edition: Generally, scientists say the visible light spectrum comprises electromagnetic radiation with wavelengths ranging from 380 nanometers (nm) on the blue end of the spectrum to about 700 nm on the red end. (By the way, a nanometer is one billionth of a meter — that’s 0.000000001 meter!) Blue light generally is defined as visible light ranging from 380 to 500 nm. Blue light sometimes is further broken down into blue-violet light (roughly 380 to 450 nm) and blue-turquoise light (roughly 450 to 500 nm).

High energy light is crucial to everyday life. We get high energy visible light from the sun, and it helps us regulate our sleeping patterns. During the daytime, the light that comes into our eyes releases enzymes in the morning, bringing melatonin levels down and helping us wake up. A consistent cycle of rest and wake, regulated by melatonin, comprises our circadian rhythm. This cycle can easily be disrupted. Fly to another country, or stay up too late, and the rhythm can change. Shift into blue light use, and disruption can easily occur. Artificial blue light before bed reduces the amount of melatonin being released in the body. Too little melatonin, too late, can prevent sleep and lead to exhaustion.

PERFECTSIGHT MacBook Pro 16 Screen Protector Warm Tips: To help cut the glare, reflection, blue light and UV ray from Apple MacBook, this screen protector has a slightly “frosted” look – matte. But if you’re looking for a crystal clear optical screen (and the eyestrain that goes with it), you might want to be aware of this before you buy. If you care about the future health of your eyes and it will aid helping further deterioration. I know it’s somewhat costly, but it’s nothing compared to the cost of your eyes. See more details on MacBook Pro 16 screen protector.

Scheduling a yearly eye exam is one of the best things you can do for your overall health! Besides addressing the obvious (such as a change in vision), an eye exam can often lead to the diagnosis of more serious conditions including diabetes, high blood pressure, and even cancer. What’s more, an eye exam will allow the doctor to check for eye conditions that may go unnoticed by the patient. Often patients diagnosed with glaucoma only become aware of their condition after having already suffered permanent vision loss. Because there are no symptoms early on, it can easily go undetected without a routine eye exam. It is also important for young children to have routine eye exams, as their vision more strongly influences their ability to learn and comprehend the world around them.

Like ultraviolet radiation, visible blue light — the portion of the visible light spectrum with the shortest wavelengths and highest energy — has both benefits and dangers. Here are important things you should know about blue light: Blue light is everywhere. Sunlight is the main source of blue light, and being outdoors during daylight is where most of us get most of our exposure to it. But there are also many man-made, indoor sources of blue light, including fluorescent and LED lighting and flat-screen televisions. Most notably, the display screens of computers, electronic notebooks, smartphones and other digital devices emit significant amounts of blue light.

What PERFECTSIGHT eye care screen protectors and eyeglasses do? PERFESIGHT eye care protectors (HD Clear Medical Edition or Matte Anti Glare Medical Edition) could blocks more than 55% of the blue light into eyes especially in about 450nm wavelength and reduce the damage of blue light to the eyes, really to be best blue light filter for deigital device. PERFESIGHT blue light blocking glasses could filter about 70% of the blue light from your phone,tablet, computer’ screen. Eye Care screen protectors tested by specially AMERICAN SOLAR LIGHT. Find a few more details at