Tips to protect your eyes from the blue light in the sky

Blue light comes from the sun too

Learn how to pick sunglasses to fit your face.You’ve heard it before. Too much screen time can be straining on the eyes and could potentially increase the risk of  cataracts or macular degeneration.[1] It’s all thanks to blue light ─ glaring from your smartphone, tablet or computer. Even fluorescent and LED lighting release blue light. So what’s the solution? Some might suggest spending more time outdoors… but take heed.

Do you know why the sky is blue?

The sun is the single strongest source of blue light and being outdoors without proper eye protection may be worst exposure of all. 1. Those beautiful sunbeams are 100 times stronger than indoor blue light culprits. Just 15 minutes in the sun can have the same effect as 10 hours of screen time. [2] Unfortunately, only 17% of people know that the sun puts off blue light[3] and even fewer probably know that it’s why the sky is blue.

Tips to pick the proper sunnies

Prescription protection

Ask your eye doctor about lenses with built-in blue light and UV filtering protection – like Blue IQ ClearTM and Blue IQTM lenses from LensCrafters® – to help protect your eyes from unhealthy levels of blue light.

Non-prescription matters, too

Even if you don’t need corrective eyewear, non-prescription sunglasses can play an important role in blocking blue light exposure and making sure your eyes stay healthy. According to the National Eye Institute, an estimated 20% of cataracts cases are caused by extended UV exposure.[4]

Check the UV protection

Optometrists recommend sunglasses that deliver the highest level of ultraviolet (UV) protection. Look for labels that say “99% UV protection guaranteed,” “100% protection guaranteed” or “UV 400.”[5]

Polarized has its perks

Polarized lenses are a go-to option to reduce glare from reflective surfaces during activities like driving and water sports. Plus you can get prescription versions like bifocal and progressive lenses.

Warm and sunny weather means enjoying the great outdoors – from the pool to the beach to a stroll in the park. But, just like wearing a bike helmet or a seat belt to play it safe, it pays to protect your eyes when you’re out in the sun.


[1] http://www.allaboutvision.com/cvs/blue-light.htm
[2] Baillet G., Granger B. 2016
[3] Transitions Optical Consumer Brand Tracking – US Feb / Mar 2016; Wakefield Research, Nov 2015
[4] National Eye Institute, “Keeping your eyes healthy: wear sunglasses.” https://nei.nih.gov/hvm/healthy_eyes_glasses
[5] All About Vision, “Sunglasses: Frequently Asked Questions,” 2014.