We spend hours daily staring at the screen. Long-term use can cause eye strain. Our phones, TV screens, and laptops emit blue light. Excessive exposure to it has multiple negative implications. To overcome this, many people use blue light glasses. They filter out some of this light. But are they worth it? Read on to know.
What Is Blue Light?
Blue light originates from both natural and man-made sources. The sunlight is blue light, but so are many digital devices and indoor lights.
Blue light has a short wavelength and high energy. This combination can harm our eyes, especially following extended periods of screen time. This light may also disturb your sleep cycle. So, avoid devices that emit light late at night.
Why Blue Light Glasses?
Blue light glasses help alleviate eye discomfort associated with prolonged screen time.
Long exposures usually cause:
- Dry, tired eyes
- Blurry vision
- Difficulty in focusing
- Headaches
- Problem falling asleep
A 2022 report found that 80-94% of people who work on digital screens experience some form of digital eye strain. Using blue light glasses can help. They block light wavelengths from reaching your eyes.
When Are They Helpful?
The glasses can help if you:
- Spend four or more hours a day on screens
- Often use devices in the evening
- Experience dry or itchy eyes
- Get headaches from glare
- Work under harsh indoor lighting
- Have recently had eye procedures
However, they may not be needed if:
- Your screen time is low
- You work in natural light mostly
- You use screen warmers
- Your device has dim blue light settings
Possible Advantages of Blue Light Glasses
- Improve Sleep: Blue light affects melatonin levels. Melatonin is a sleep-inducing hormone. By wearing blue light glasses, your exposure to blue light is reduced. So, you sleep better.
- Less dryness and irritation: Spending long hours on screens means fewer blinks. That’s one reason for dry eyes. Wearing blue light glasses may ease eye discomfort caused by strain.
- Helpful during recovery or for sensitive eyes: Some people wear them after surgery or when they are sensitive to indoor environments.
- Easier on the eyes: They filter the strong light and reduce glare. It reduces eye fatigue.
Buying Guide
Shop for a pair with:
- Full-spectrum filtering: Lenses that are most helpful block blue light in the 410-460 nanometer range.
- Right lens tint: Clear lenses work well for daytime use. Amber or yellow lenses block more blue light. So, they are more suitable for nighttime use.
- Good comfort: Ensure the frames feel good on your nose and ears. Choose lightweight designs. They make long wear easy.
- UV protection: A blue light coating does not imply good UV protection. So, look for a pair that offers this feature.
Ask an expert if you’re unsure about what to do. An optometrist can test the lenses or advise you based on your eye health.
Final Thoughts on Blue Light Glasses
Blue light glasses can help reduce eye discomfort, particularly for those who spend long hours in front of a screen. Although it is still somewhat speculative to claim, many people find it useful in reducing glare and screen usage during the evening.
Pairing good habits with the use of these glasses ensures maximum benefits.
So:
- Pause for breaks
- Blink often
- Practice the 20-20-20 rule: Every 20 minutes, take a 20-second break and gaze at something 20 feet away
As blue light glasses reduce eye strain, they are a valuable accessory.
FAQs
How can I tell if my eyes are strained from screen use?
Eye strain can manifest as headaches, blurry vision, dry or itchy eyes, and difficulty focusing. If you experience these symptoms after extended screen time, it may indicate strain.
Can wearing protective lenses help with eye sensitivity after surgery?
Yes, using protective lenses can reduce discomfort and sensitivity, especially in the healing process after eye surgeries, as they block harmful light exposure.
Do these lenses help with glare from overhead lighting?
Yes, protective lenses can reduce glare from harsh indoor lighting, making it easier on your eyes during long periods of work or screen use.
Are there any specific features to look for when buying lenses for screen use?
Look for lenses that offer comfort with lightweight frames, full-spectrum filtering, and UV protection, ensuring that they’re both functional and comfortable for long hours of use.
Is there a difference between daytime and nighttime lens colors?
Yes, amber or yellow-tinted lenses are ideal for nighttime use as they block more harmful light, while clear lenses are more suitable for daytime when there’s more natural light.
