Blue Light Glasses Vs. Night Mode- Which is better for Eyes?

In this digital era, we have become addicted to Smartphones, laptops, and desktops. Whether we are studying or doing jobs, these gadgets have become the most crucial part of our daily lives. But we are unaware that excessive use of these gadgets can be harmful for us. 

The blue light emitting from the screen puts strain on your eyes. Constant exposure to blue light can cause sleeplessness, migraines, and stress. This is why doctors advise using anti-blue light glasses whenever you sit for work on the digital screen. However, some people say that the night mode feature available in the devices can work similarly to blue light glasses. 

When you turn on the night mode on your phone and computer, you'll notice the screen background and color of light change. But the result is not similar to what you get from blue light glasses. In short, both are not the same and night mode only offers tinted vision instead of complete protection from glasses. 

To have a clear perception, let's look at the article in detail. 

What are Blue Light Glasses? 

The glasses that help to block blue light emitting from the screens are known as blue light glasses. The anti-blue light glasses help in eliminating harmful rays that fall in the range of 400 nm to 550 nm. The prime purpose of wearing blue light glasses is to reduce the effect of blue-violet light. 

However, some glasses also claim to block 100% of the blue light. Doctors recommend wearing blue light glasses when working on computers and laptops. 

What is Night Mode? 

Night Mode is an interesting feature available in Smartphones, laptops, and computers. This is a built-in application and a display setting that enables you to change the white light coming from the laptop into yellow with a gray background.

Night mode is also available in the devices with other names such as dark mode, black mode, and dark theme. The idea behind the night mode is to minimize the emission of harmful blue light from the devices. It creates minimum contrast with the background of the screen. 

However, night mode isn't sufficient in blocking blue light completely. But, it helps to minimize eye strain and increase battery performance. 

Head to Head Comparison between Night Mode and Blue Light Glasses

Here is the comparison between blue light and night mode. Let’s take a deep dive. 

Comparison Parameters 

Night Mode 

Blue Light Glasses


Night mode is a feature installed in the devices to reduce the impact of the blue light-emitting from these digital screens. However, it is not able to block blue light completely. 

Glasses have a special blue light filtering capacity, blue light glasses. These glasses help block the blue light of digital screens and protect the eyes.

Blue Light Filtering Capacity

There is no such evidence that shows night mode can block blue light.

This helps filter out the blue and green light that ranges between 400 nm to 550 nm. It is helpful to filter out 100% blue light

Usage Time

You can set it manually on your device and use

Recommended to wear for 2-4 hours before use


To reduce the harmful effect of blue lights and improve sleep

To block the blue light and reduce strain on the eyes. 

Why Can Use

Night mode is often great for people who don’t use blue light glasses 

Blue light glasses can be used by the people who spend more time on digital screens

What Are the Key Differences between Night Mode and Blue Light Glasses 

The key differences between the night mode and blue light glasses for kids are as follows: 

  1. The blue light glasses are focused on filtering blue light coming from the digital screen and are helping to improve the circadian rhythm cycle. On the other hand, a night mode is a form of display setting that only focuses on changing the screen's background into a black and dark screen. 

  1. The anti-blue light glasses are helpful to block the blue light that is emitting from devices like smartphones, laptops, and others. Wearing these glasses during screen time can be beneficial for reducing the glares and strain from the eyes. At the same time, night mode doesn't offer any blue light-emitting feature. Instead, it only changes the background of the screen. 

  1. The blue light glasses need to be worn by the person during the screen time. On the other hand, a night mode is a new feature which is built-in all almost on devices including laptop and Smartphones. You can change it when you need to. Moreover, the night mode setting is available in devices with different names: dark theme, black mode, and dark mode. 

  1. The blue light glasses are pretty helpful in blocking 100% of the blue light and green light coming from the digital screen. Moreover, it is also helpful in blocking 99% of the UV rays, which can harm your eye and even cause blurry vision. 

  1. Night mode is useful to prevent eye strain. On the other hand, blue light glasses improve sleep, protect eyes from strain, and keep your eyes cool. 

Final Thought

Blue light glasses are helpful for those people who spend maximum hours on the screen. You can also wear blue light glasses if you have problems such as watery eyes, discomfort, strain, or headache due to constant exposure. All these things are caused due to frequent exposure to blue light. 

However, if you are not using digital screens for longer, you can use the night mode on your screens and enjoy watching content. If you have any more issues due to blue light, such as disturbance in the sleep cycle and others, you should consult doctors for better treatment.