Do you often feel tired and uncomfortable facing electronic screens for a long time? That's because the blue light emitted by digital screens can have a potentially adverse effect on the eyes, which in turn can cause dryness or tears. As people become more aware of the effects of digital screens on eye health, more and more people are choosing to wear blue light glasses to protect their vision. But are blue light glasses so powerful?
What is blue light?
Blue light is the common name for the light waves in the visible spectrum with a relatively short wavelength and high energy. Daily blue light comes mainly from the sun and LED backlighting emitted by electronic devices - commonly smartphones, TVs, computer screens, etc.
The presence of blue light has positive effects on people. Natural blue light emitted from sunlight is a natural light that can help regulate the body's biological clock and day-night rhythms, helping to maintain a normal sleep-wake cycle. However, too much exposure to artificial blue light emitted from electronic devices may increase eye fatigue, eye discomfort, dry eyes, and in severe cases, macular degeneration. Prolonged exposure at night may also disrupt sleep and suppress melatonin secretion, leading to reduced sleep quality.
What are blue light glasses?
Blue light glasses are eyeglasses with special lens coatings or materials designed to filter and thus reduce eye exposure to the harmful wavelengths of blue light. By wearing blue light glasses, your eyes will be exposed to less high energy light, and experience less glare and eye strain.
Although blue light glasses can reduce up to 80% of harmful blue light reaching our eyes, blue light glasses can only filter out light in the direction running through your lenses. Therefore, to protect our vision properly, we should also cultivate good daily habits, some are introduced below.
Great Tips to Prevent Eyestrain
Try using the "20-20-20" rule, which involves moving your eyes from the screen to an object at least 20 feet away for 20 seconds every 20 minutes to give your eyes a break.
If your eyes feel dry and sore, use artificial tears to rehydrate them.
Keep your distance
The closer you hold a handheld device such as a cell phone or tablet, the harder it is for your eyes to focus and the more likely you are to experience eye strain. For this reason, we recommend that you maintain a viewing distance of 16 inches or more per day.
Sitting at the computer desk for most of the day, and holding a smartphone for the rest, it is becoming more and more important to be aware of how we can protect our vision from the strain of digital screens. Blue light glasses are worth trying as eyewear comfort is an easy method and essential to achieving high quality lifestyle. To learn more about eyewear, visit NextPair.