Should You Really Be Wearing Blue Light Glasses All Day Long?

Introduction to Blue Light Glasses

Blue light glasses have become increasingly popular over the past few years. Also known as computer glasses or gaming glasses, these special eyewear blocks or filters out high-energy blue light emitted from digital screens and LED lighting.

But should you really be wearing blue light blocking glasses all day? Let's take a deeper look at how they work, their possible benefits, and when you might want to take them off.

What is Blue Light?

Blue light is a high-energy visible light that is all around us. The biggest source of blue light is sunlight. Screens like phones, tablets, and computer monitors also emit significant amounts of blue light.

While blue light during the day helps regulate circadian rhythms and keep us alert, exposure at night can disrupt sleep patterns and cause eyestrain. Long term blue light exposure may also contribute to eye disease or aging.

Effects of Blue Light

Here are some of the effects blue light can have on the body:

• Suppresses melatonin production at night
• shifts circadian rhythms
• Contributes to digital eye strain
• May cause damage to retinal cells
• Can lead to premature skin aging

Do Blue Light Glasses Work?

Blue light glasses are designed to filter out some high-energy blue light. The glasses have special lenses coated with a film that selectively absorbs and reflects light in the 400-455 nm wavelength range.

This filtering of blue light may provide the following benefits:

Reduce Digital Eye Strain

Staring at screens all day can lead to tired, dry eyes. Blue light glasses can help by lowering the intensity of high-energy light entering the eyes.

Better Sleep Quality

Blocking blue light at night allows your body to produce more natural melatonin. This can help you fall asleep faster and sleep more soundly.

Less Eyestrain and Headaches

Many people report less eyestrain and headaches when using blue light glasses, especially when working on computers for long periods.

Protect Eye Health

Filtering high-energy blue light may provide long term protection against macular degeneration and retinal damage.

Reduce Premature Skin Aging

Some research indicates blue light exposure contributes to collagen breakdown in skin. Blue light glasses may help slow photoaging from light exposure.

Should You Wear Blue Light Glasses All Day?

While blue light glasses do seem to provide some real benefits, experts generally don't recommend wearing them all day from sun up to sun down. Here are some tips on when you should and shouldn't use blue light blocking glasses:

Wear Them for Extended Screen Use

Blue light glasses are most helpful when you'll be staring at screens for an extended period, such as working on a computer all day or gaming for several hours. They reduce digital eye strain in these situations.

Wear Them in the Evening

Wearing blue light glasses for 1-2 hours before bedtime can help increase natural melatonin and improve sleep quality. This is especially helpful if you'll be using screens at night.

Take Them Off for Driving

Don't wear blue light glasses while driving, as the tinted lenses may reduce visual clarity and make it harder to see the road, especially at night.

Remove for Outdoor Activities

Take blue light glasses off when spending time outdoors, as filtering sunlight all day may negatively impact circadian rhythms and vitamin D production.

Avoid All Day Indoors

Unless medically necessary, avoid wearing blue light glasses indoors all day. Some blue light exposure is important for healthy vision and sleep/wake cycles.

How to Choose Blue Light Glasses

Here are some tips for choosing quality blue light blocking glasses:

• Look for lenses that filter 100% blue light at 400-455 nm range.
• Choose lightweight frames for all day comfort.
• Get adjustable nose pads for a customized fit.
• Select yellow tinted lenses that improve contrast.
• Avoid cheap glasses that may reduce visual clarity.
• Ask your optometrist for lens coating options.

Prescription or Non-Prescription

You can purchase blue light glasses with or without a prescription. If you normally wear prescription glasses, get lenses with blue light filters. For occasional computer use, non-prescription glasses work well.

Lens Color Options

Yellow tinted lenses offer the best contrast and depth perception. Amber, orange, and red lenses also block blue light, but may distort colors.

Other Ways to Reduce Blue Light Exposure

In addition to blue light glasses, here are some other ways to limit exposure:

• Install blackout curtains in the bedroom.
• Use night shift mode on devices at night.
• Reduce screen brightness.
• Take regular screen breaks.
• Don't use screens for 1-2 hours before bed.

The Bottom Line

Blue light glasses offer real benefits for digital eye strain, sleep, and potentially eye health. While they shouldn't be worn all day, they are useful during extended screen time and in the evening.

Talk to your eye doctor about whether blue light blocking lenses are recommended for your needs and usage. With sensible use, blue light glasses can be a handy tool for the digital age.

Disclaimer: This article is for informational purposes only and does not constitute medical advice. Always consult with a healthcare professional before starting any new treatment regimen.