What are blue light lenses?

If you look at digital screens like computers, mobiles and TV, your eyes may be exposed to blue light. This isn’t always harmful to your eyes or vision; however, it can affect your sleep and may cause digital eye strain.

Blue light glasses help filter blue- violet light, which may minimise their effects and can help to improve sleep.

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How does blue light affect my eyes?

As blue light has a high energy level, just like UV rays, it can penetrate your eyes through to the retina. It is also thought over exposure to blue light can damage the retina, although there is little research to support this.

Blue light may affect how well you sleep. It suppresses how well your body produces melatonin, the hormone which controls your sleep cycles. If you don’t produce enough melatonin, you can trick your body into thinking you don’t need to sleep. A lack of sleep can cause:

Eye strain
Fatigue
High blood pressure
Diabetes
Depression

When speaking to our customers, 63% said they have tired eyes after looking at screens. 87% of those agreed that their eyes felt less tired when using digital screens whilst wearing blue light lenses. One customer said, “I’ve noticed a real improvement in my vision when using screens and a reduction in headaches”.

Lots of the damage thought to be caused by be blue light is often due to not blinking often enough. Blinking lubricates your eyes. When you stare at digital devices for too long, you blink less often than usual, which can cause:

Dry eyes
Eye strain
Irritated eyes
Headaches

How do blue light glasses work?

The lenses in blue light glasses may have a subtle tint, which helps to counterbalance and filter blue-violet light. They filter blue-violet light just like sunglasses filter UV rays. This means your sleep could remain unaffected even when you use digital devices.

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What are blue light lenses?

Do blue light glasses work?

Is blue light harmful to my eyes?

*Based on 1200 customers who purchased blue light glasses in 2021.

T This survey was carried out in 2021 in the form of a questionnaire. We asked 1,200 customers who had previously purchased blue light glasses from Vision Express some questions about their experiences and opinions on using blue light glasses.

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Blue Light Glasses for Children

With digital devices playing a bigger part in children’s education, it’s important you protect their eyes from digital devices.

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