LED lamps are famous for being used in everything from smart phones and tablets to televisions and computer monitors, but are these lights safe? Optometrists say no, these blue backlights are hazardous to the eye’s retina, prompting many consumers to turn to manufactures like Felix Gray for specialty computer reading glasses.
According to several studies, LED lights can cause irreparable damage to the retina. In fact, compared to normal light bulbs, this blue light system is 1000 times higher, and the blue light is directional, not diffused, therefore more critical to eye health.
Some studies show that these LED lights also disturb sleep and cause a state of tension and biological stress. Doctors say if you sit in front of an LED screen in the evening, it will delay your sleep-wake cycle. The level of the sleep hormone melatonin is affected by light with a high blue content.
Smart Device Lights Disturbs Sleep
Do you work in front of the computer every day, and then stay up late at night watching television or using a smart device? Doctors ask, do you then sleep poorly. It is quite probable that the light from the LED screen could be responsible for that. The consequences can range from bad, disturbed sleep to noticeable daytime tiredness, and possibly serious long-term health problems.
The sleep hormone melatonin controls our internal clock and thus our day-night rhythm, and melatonin requires absolute darkness. During the night, the hormone the releases, that is, unless we are remaining awake by that LED blue light.
However, doctors say, not only are sleep disorders the possible consequences. Since melatonin also has a protective and repair function, at the same time, serious chronic diseases such as cancer can develop.
The high proportion of blue light from PC monitors, smartphones and TV sets proves to have become one of the biggest burdens. This problem is progressively getting worse, because human beings are living longer, and children are using electronic devices from an early age throughout the day, even for schoolwork.
How to Protect Your Eyes
Light affects everything in the human body, from heart rate to cognitive abilities. When there is too much light or there is not enough good light, some biological and behavioral processes are altered.
Given the problems, here are a few ways to protect eyesight;
1) Lower the lights. The computer screen is usually the brightest item in the room. You can change the settings for the monitor, or better yet, turn off the computer at night.
2) Minimize exposure to blue light. Constant light is not good for eye health, and it certainly creates a disturbance for a good’s night’s sleep. Avoid over-exposure; refrain from using devices at least 2-3 hours before going to sleep.
3) Impose a 20/20 rule. Every 20 minutes look away from the device and give yourself an eye break.
Lastly, if you notice you suffer from eye strain, it’s best to have an eye test done to determine if there’s any damage. Purchasing computer reading glasses that filter blue light is also a good approach to preserving your vision.