Do Blue Light Glasses Work?

The answer is Yes.

Today, it's not uncommon for people to spend hours in front of computer, laptop, ipad, cell phone and TV. However, the blue light emitted by these devices can lead to a range of issues if you are exposed to them for a long time.

In recent years, blue light glasses have gained popularity as a potential solution to combat these issues. 

a man wearing blue light glasses with ipad on hand

Do Blue Light Glasses Work?

Blue light glasses, also known as blue light blocking or blue light filtering glasses, are specially designed eyewear that aims to filter out or block the blue light emitted by digital screens. These glasses are equipped with special lenses that can selectively absorb or reflect blue light while allowing other wavelengths of light to pass through.

The most common type of blue light glasses features lenses with a special coating that filters out a portion of the blue light spectrum, typically 380-500 nanometers. This range is believed to be the most harmful and high-energy portion of blue light that can cause eye strain and disrupt sleep patterns.

Benefits of Wearing Blue Light Glasses

1. Reduction of Eye Strain:

Prolonged exposure to digital screens can lead to symptoms such as dry eyes, blurred vision, and eye fatigue, collectively known as digital eye strain or computer vision syndrome. Blue light glasses can help alleviate these symptoms by reducing the amount of blue light entering the eyes and minimizing eye strain.

2. Improved Sleep Quality:

The blue light emitted by screens can interfere with the body's natural sleep-wake cycle by suppressing the production of melatonin, a hormone that regulates sleep. Wearing blue light glasses in the evening or before bedtime can help minimize blue light exposure, leading to improved sleep quality.

3. Prevention of Long-Term Effects:

Some studies suggest that chronic exposure to blue light may contribute to long-term eye health issues, such as age-related macular degeneration. By reducing the blue light reaching the retina, blue light glasses may help in preventing or delaying the onset of these conditions.

a women wearing blue light glasses in front of laptop

Misconceptions about Blue Light Glasses

1. Unnecessary for Everyone:

While blue light glasses are not necessary for everyone, they can be particularly beneficial for individuals who spend a significant amount of time in front of screens, such as office workers, students, and gamers. People experiencing symptoms of digital eye strain may find relief by using blue light glasses.

2. Complete Blockage of Harmful Light:

It's important to note that blue light glasses do not block all blue light. They selectively filter out a portion of the blue light spectrum that is believed to be the most harmful. Some level of blue light is still necessary for maintaining proper vision and regulating certain biological functions.

3. Vision Acuity Improvement:

Blue light glasses do not enhance vision acuity or correct vision problems such as nearsightedness or farsightedness. Their primary purpose is to reduce the negative effects of blue light on eye health and comfort. If you need vision correction on your glasses, you may buy prescription blue light glasses.

Caring for Your Eyes Beyond Blue Light Glasses

While blue light glasses can be beneficial, they are just one part of maintaining healthy eyes. Here are some additional measures to consider:

1. Adjust Screen Settings:

Reduce the brightness and color temperature of your screens to minimize blue light emission.

2. Take Regular Breaks:

Follow the 20-20-20 rule – every 20 minutes, take a 20-second break and focus on something 20 feet away to reduce eye strain.

3. Practice Good Posture:

Maintain proper posture while using digital devices to avoid neck and back strain, which can indirectly impact eye comfort.

4. Optimize Lighting Conditions:

Ensure that the lighting in your workspace or room is adequate and doesn't cause additional strain on your eyes.

5. Regular Eye Exams:

Schedule regular visits to an eye care professional for comprehensive eye exams to monitor your eye health and address any concerns.


Blue light glasses can be a useful tool in protecting your eyes from the negative effects of blue light. By reducing blue light exposure and minimizing eye fatigue, they can improve overall eye health and comfort.

If you find yourself spending significant time in front of screens or experiencing negative symptoms for a few days, consult your eye doctor and consider wearing blue light glasses into your daily routine.