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Blue light protection technology is becoming popular for protection from light emitted by computer, smartphone, and tablet screens, as well as televisions and even energy-efficient LED lights.

While more studies need to be done before it’s conclusive that light from our devices is harmful, there are options out there for protection.

Without some guidance, telling the difference between traditional lenses and special blue light lenses can seem impossible, or not worth the extra money. These lenses may run you a hundred bucks extra or more.

Here’s our guide to the three best anti-blue light glasses available right now. We took advice from experts who know a thing or two about these lenses, and people who have already given these lenses a shot.

Here’s what we looked for when choosing these glasses:

  • Does the product truly use blue light protection? Some glasses advertise blue light protection when they don’t actually meet the criteria as set forth by researchers.
  • Is the product high quality? You can get blue light glasses that aren’t well made. All the products here are intended to last before you have to get a replacement.
  • Is the product sustainably sourced and manufactured? It’s important in the age of climate change to be cognizant of how your choices impact the global environment. These products come from brands that have an eco-conscious mission or initiatives to support sustainable manufacturing or hiring practices.

Are blue light glasses even a good idea? Researchers have found evidence that they might be helpful against what we know about blue light exposure. Here are some highlights:

  • A 2011 study on light-emitting diodes (LEDs) that produce a lot of blue light could have long-term health effects, including chronic eye strain and weakening the part of the eye called the macula, which helps you focus.
  • A 2015 study found that too much blue light exposure at night can interrupt your sleep cycle and affect your alertness the next day.
  • Another 2015 study found that using blue light glasses a few hours before bed can help you fall asleep more easily.

Here we go: These are the top three anti-blue light glasses you should consider if you’re looking for a pair.

Price range guide:

  • $ (under $75)
  • $$ ($75 and up)

Gunnar Intercept Gaming Glasses

Price: $

Key features
• minimalist style
• feature protection from 100 percent of UV light
• can be worn comfortably throughout the day

Considerations: These only block out 65 percent of blue light from screens and lights, and they have a slight tint that can make them look odd or inappropriate for certain environments.

4EST Shades Blue Light Blocking Glasses

Price: $

Key features
• affordable
• reduces up to 97 percent of blue light
• both frames and case made of real and sustainable bamboo
• company plants trees for every pair purchased

Considerations: There are limited design options, not many reviews, and some reviewers report that they break easily.

Covry Blue Light Glasses

Price: $$

Key features
• wide variety of frames and accessories
• comes with vegan “leather” case
• uses a special technology to keep frames high on face to prevent smudging
• website offers educational materials about eyewear

Considerations: These are relatively expensive and difficult to find on many e-commerce platforms. Reviews are skewed highly positive so not all experiences may be represented.

If you already wear prescription glasses, talk with your optical store or eye doctor about prescription lens options that include blue light filters. You’ll find a variety of options if you go that route.

Here are some questions you can use to find blue light glasses that meet all your standards:

  • Can you afford them? Some designer frame prices can run pretty high. The cheapest pairs sell for as low as $5, but durable, high-end frames or glasses with prescription lenses can cost $150 or more.
  • Do they fit your lifestyle? Some glasses are more suited for everyday wear at home or work, but others may be more suited for outdoor activities like surfing or hiking. Make sure the material, durability, and fit works for your lifestyle.
  • Are they comfortable? Do they feel heavy? Leave marks on your face? Get smudged against your cheeks easily?
  • Do they stay put on your face or are they too loose? Pushing your glasses back up your nose all day isn’t fun, especially if you’re wearing them while focusing on work tasks or intense gaming.
  • Does the manufacturer provide any technical detail about their technology? Most legit manufacturers provide a lot of detail about their technology and how it works. If you have to work hard to find this info or can’t find it at all, buyer beware.
  • Do they have legitimate endorsements? Do reputable health experts, such as optometrists, recommend them? Are they recommended by other credible health organizations?
  • Is the manufacturer a certified B corporation? This certification represents a company’s dedication to sustainably sourcing materials and fair hiring practices, such as paying workers a living wage, at all points throughout the manufacturing process.
  • Are the glasses made of sustainable materials? Are there any dyes or materials used known to be cancer-causing or otherwise harmful to your health, such as by causing allergic reactions?
  • Is it clear where the glasses are made or who made them? If you can’t find specific manufacturer info like this, the glasses may be knockoffs or counterfeits. Don’t buy glasses without a reputable seller or brand behind them.

There are tons of great options for blue light glasses. It can feel challenging to find a pair that not only fits your style but also falls into a price range you can afford, while also offering effective blue light protection.

Try some tips and recommendations here as a starting point. The glasses you want will vary based on your lifestyle and personal tastes.

Wear prescription glasses? You may want to talk to your eye doctor for more insight on blue light technology and whether your prescription is compatible with this technology.