Glasses that claim to filter blue light from computers, smartphones and tablets are becoming increasingly popular. Advertisements for these glasses claim that overexposure to blue light can cause a number of problems, including digital eye strain, sleep cycle disruption, or even eye diseases that cause blindness.
There is no scientific evidence that light from computer screens is harmful to the eyes. Because of this, the Academy does not recommend any special glasses for computer use.
Does blue light from screens hurt my eyes?
Spending many hours looking at digital screens causes a decrease in blinking. Blinking less sometimes causes a series of temporary eye symptoms known as visual fatigue. But these effects are caused by as people use their screens, not for anything that comes from the screens. The best way to avoid eye strain is to take frequent breaks from the screen.
the amount of light Technology from a computer has never been shown to cause any eye disease. A study reprinted by the National Library of Medicine No measurable UVA or UVB radiation (the most harmful part of light) was found in computer screens.
There is some evidence that blue light affects the body’s circadian rhythm, our natural sleep-wake cycle. The best way to avoid disrupted sleep is to avoid screen use two to three hours before bedtime. Using “dark” or “night” mode on devices at night can also help.
Do blue light blocking glasses help with eye strain?
Various studies Suggest wearing blue light blocking glasses. symptoms do not improve of digital eye strain. The American Academy of Ophthalmology does not recommend blue light-blocking glasses due to a lack of scientific evidence that blue light is harmful to the eyes.
What can I do to relieve eye strain?
You can protect your eyes from fatigue if you work on computers all day with these tips:
- Sit about 25 inches (at arm’s length) from the computer screen. Position the screen so that it is facing slightly downward.
- Take regular breaks following the “20-20-20” rule: Every 20 minutes, switch your eyes to look at an object at least 20 feet away for at least 20 seconds.
- When your eyes feel dry, use artificial tears to refresh them.
- Adjust the lighting in your room and try increasing the contrast of your screen to reduce eye strain. Use a matte screen filter if necessary.
- If you wear contact lenses, give your eyes a break by wearing your glasses.
Most eye symptoms caused by computer use are only temporary and will subside after you stop using the computer. If you continue to experience these symptoms, contact your ophthalmologist.
My son uses screens all day. Do they need special glasses?
The recommendation for children who use screens all day is the same as for adults: the best way to relieve eye strain is to take breaks. We have created the following guide for children participating in virtual learning,
