Tempered glass screen protector without bubbles purchase guides: 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.

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. Read more details at how to get bubbles out of a 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.

Adults have their own issues to deal with. As we age, our eyes “remember” and retain energy. Blue light not only penetrates all the way to the retina in the back of the eye, it builds up over time. The cumulative effect causes eye strain, dry eye, and unnecessary exhaustion. Because of its temperature and frequency, blue light tends to affect both the retina and the cellular anchors, leading to early onset of Advanced Macular Degeneration, an issue which must be corrected through surgery. Consistent melatonin disruption has also been linked in recent studies to an increased risk of obesity and some cancers.

UV rays have higher energy than visible light rays, which makes them capable of producing changes in the skin that create a suntan. In fact, the bulbs in tanning booths emit a controlled amount of UV radiation specifically for this reason. Explore even more details on www.perfectsight.co.