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Can I Wear Blue Light Glasses All The Time?

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A woman is wearing blue-light glasses to mitigate eyestrain during her workday.

In our digital age, screens dominate our daily lives. From smartphones to computers, tablets to televisions, exposure to blue light is nearly constant. To combat the potential negative effects of this blue light, many people have turned to blue light glasses. 

These specialized lenses claim to reduce eye strain, improve sleep, and protect against potential eye damage. But a common question arises – can I wear them all the time? In short, yes, you can wear blue light glasses all the time, but it is not necessarily essential to wear them all day and every day.

Understanding Blue Light

Before diving into whether it’s safe to wear blue light glasses all the time, it’s important to understand what blue light is. Blue light is a type of visible light with a wavelength between 380 and 500 nanometers, making it one of the shortest and highest-energy wavelengths. It’s found naturally in sunlight and is beneficial during the day as it boosts alertness, helps memory and cognitive function, and elevates mood.

Risks of Blue Light to Our Vision

While blue light has its benefits, overexposure can pose significant risks to our vision. Prolonged exposure to blue light, especially from digital screens, can lead to digital eye strain, characterized by symptoms such as dry eyes, blurred vision, headaches, and difficulty focusing. 

Some extensive blue light exposure may contribute to long-term eye health issues, including an increased risk of macular degeneration, a leading cause of vision loss. The cumulative effect of blue light exposure over time is particularly concerning, highlighting the importance of moderating screen time and considering protective measures like blue light glasses.

Benefits of Blue Light Glasses

Blue light glasses are designed to filter out the high-energy blue light emitted from digital screens. Here are some key benefits:

  • Reduced Eye Strain: Wearing blue light glasses can help reduce the symptoms of digital eye strain. This is particularly beneficial for those who spend long hours in front of screens for work or leisure.
  • Improved Sleep: Exposure to blue light in the evening can suppress the production of melatonin, the hormone responsible for regulating sleep. By wearing blue light glasses, you can potentially improve your sleep quality by reducing this interference.
A pair of blue light blocking glasses are balanced on a laptop keyboard.

Drawbacks of Blue Light Glasses

Despite their numerous benefits, blue light glasses are not without their drawbacks. One of the primary concerns is the lack of definitive scientific evidence supporting all of the claimed benefits, as the long-term effectiveness of these glasses is still ongoing. Some users may experience visual discomfort or slight colour distortion due to the tint of the lenses, which can be distracting or bothersome, especially when color accuracy is crucial, such as in graphic design. 

Relying solely on blue light glasses may lead individuals to overlook other essential practices for eye health, such as taking regular breaks from screens, ensuring proper lighting, and maintaining a balanced and healthy lifestyle. Lastly, the cost of blue light glasses can be prohibitive for some, making it important to weigh their potential benefits against these considerations.

Can You Wear Them All the Time?

The short answer is yes, you can wear blue light glasses all the time, but it might not be necessary. Here’s why:

  • No Known Harm: There is no evidence to suggest that wearing blue light glasses all day is harmful. These glasses do not alter your vision or the colors you see in a significant way, making them safe for prolonged use.
  • Comfort and Preference: Some people find wearing blue light glasses all the time to be comfortable, especially if they are sensitive to bright screens or indoor lighting. However, others may find them unnecessary during periods of natural daylight when blue light from screens is less intense compared to the blue light from the sun.
  • Daytime Use: Natural blue light from the sun is beneficial for maintaining a healthy circadian rhythm and overall well-being. Wearing blue light glasses all the time might slightly reduce exposure to this beneficial light. It’s generally recommended to use blue light glasses primarily when using digital devices, particularly in the evening.

The Way Towards Taking Charge of Your Eye Health

Wearing blue light glasses can be a practical solution for reducing digital eye strain and improving sleep quality, especially for those who spend significant time in front of screens. While it’s safe to wear them all the time, it’s essential to strike a balance. During the day, allow yourself exposure to natural light to maintain your circadian rhythm. Reserve the use of blue light glasses for extended screen time and evening hours to reap their full benefits.

Ultimately, whether you choose to wear blue light glasses all the time depends on your personal comfort and lifestyle needs. As with any health-related decision, it’s always a good idea to consult with an eye care professional to ensure you’re making the best choice for your vision health.

By focusing on these points, we hope to provide valuable information to digital nomads, students, and office workers who are considering blue light glasses. If you find this information helpful or if you have more questions about blue light and blue light glasses, contact Sage Eyecare in Etobicoke/Mississauga, ON. to book an appointment.


Written by
Dr. Mae Chiu

Dr. Mae Chiu obtained her Honours Bachelor of Science and Doctor of Optometry degrees from the University of Waterloo. She completed clinical externships in Hong Kong and in Canada specializing in ocular pathologies such as macular degeneration, glaucoma, diabetic retinopathy and cataracts. She received further training in the areas of specialty multifocal contact lens fittings and co-management of refractive laser and cataract surgeries.

Dr. Chiu is certified for prescribing therapeutic agents. She is a member of the Canadian Association of Optometrists and Ontario Association of Optometrists. Dr. Chiu enjoys travelling and trying out different cuisines from all over the world. Dr. Chiu is fluent in English and Cantonese.

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Dr. Mae Chiu

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