What is blue light?

Where to buy blue light glasses? Applying Screen protectors properly without annoying bubbles or dusts for phones and tablets can be the most frustrating job. In this article you’ll get some useful tips on how to put on a screen protector directly to avoid any bubbles or trapped dirts. This methoud apply to different mertials’ screen protecotr for phone and tablets like tempered glass, plastic, PET film, liquid film, etc. After aligning the upper part, slowly adjust the position of the whole screen protector appropriately to ensure the position is correct, and then place the lower half on the screen.

Most people are aware that sunlight contains visible light rays and also invisible ultraviolet rays that can tan or burn the skin. But what many don’t know is that the visible light emitted by the sun comprises a range of different-colored light rays that contain different amounts of energy.

In daily artificial lighting, when the illumination is 100–300lx and the flash frequency is not less than 150HZ, the light is more suitable for the human eyes. When the illumination is too strong, and the flash frequency is insufficient, it is easy to cause eye fatigue, which may cause ametropia in the human eye. When watching the mobile phone for a long time, the glare that is constantly flashing on the screen will cause continuous stimulation to the eyes. When the eyes keep capturing these light and shadows, the eyes will feel tired and cause damage to the tear film on the surface of the eyeball, causing dry eyes and deepen the myopia. Explore additional details on iphone anti glare screen protector.

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.

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. Find extra details on perfectsight.co.