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. Read a few extra info at Macbook Pro 16 blue light filter.
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.
The eye is not very good at blocking blue light. Anterior structures of the adult human eye (the cornea and lens) are very effective at blocking UV rays from reaching the light-sensitive retina at the back of the eyeball. In fact, less than one percent of UV radiation from the sun reaches the retina, even if you aren’t wearing sunglasses. (Keep in mind, though, that sunglasses that block 100 percent of UV are essential to protect these and other parts of the eye from damage that could lead to cataracts, snow blindness, a pinguecula and/or pterygium, and even cancer.) On the other hand, virtually all visible blue light passes through the cornea and lens and reaches the retina.
Tempered glass screen prtector (aslo called Toughened glass screen protector) is a type of safety glass screen cover processed by controlled thermal or chemical treatments to increase its strength compared with normal glass screen protector. Tempering craft puts the outer surfaces into compression and the inner surfaces into tension.Tempered glass screen prtector is 5 to 10 times more stronger than normal glass screen protector. Tempered glass screen protector is usually made of multi-layered structure, 3-5 layer is most frequently on market.(PERFECTSIGHT best eye care tempered glass screen protectors for iPhone, iPad, MacBook even is up to 11 layer). Read a few more details on www.perfectsight.co.
