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Why Blue Light Filtering Apps Are Not Good Enough

 

We are now in an era where we daily expose ourselves to a high amount of blue lights- a high-energy short wave light. Lots of energy-saving technological developments like LEDs and Compact Fluorescent Lamps (CFLs) are increasing our exposure to blue light. Not only have that, but the screens/displays of our laptops and smartphones also emits a high amount of blue light.

Unfortunately, overexposure to blue light has been shown to have lots of adverse effects on our health, including the disruption of our sleep cycle. Hence, a lot of people are now looking for ways to reduce their exposure to blue lights. One of the trending solutions is the use of Bluelight filter apps.

Every kind of platforms and devices, including Windows, Apple, and Android, are now using Bluelight filters to reduce blue light exposure. But there are still lots of reservations concerning the effectiveness of these apps. And the common question is, "Are these Bluelight filters as effective as advertised to interrupt blue light exposure?" We need to understand how these Bluelight filter apps work before we answer this question.

The Working Principle of Bluelight Filter Apps

The blue light filter apps are designed to shift the color tone of what your screen displays to the warmer part of the light spectrum like yellow, orange, or red. This shift reduces the blue light emitted from your device and gives your screen a yellow, orange, or red coloration.

There are two major approaches in which the blue light filter Apps shifts the color tone of your screen. They include:

  • The transparent layer approach: Here, the app gives a transparent layer over your screen to reduce the lower the full intensity of the blue light. Depending on the particular app, the transparent overlay can be yellow, orange, or red. However, the layer is not physical; it a software-rendered layer that is designed to reduce blue lights.
  • The color transform approach: This approach employs software tools that directly act at the video driver level to control light intensity. It bypasses the operating system and controls what color your screen displays. So, these apps tend to shut off pixels giving off blue light and shift the colors towards the warmer tones (yellow, orange, or red).

Although these two methods help to reduce the same amount of blue light, still color transform method is far better at preserving the contrast of your display screen. The transparent overlay tends to reduce the contrast of your screen, and this can make you strain your eyes before you can read on your screen. Sadly, most blue light apps available today utilize the transparent overlay to combat blue light while only a few apps use the color transform approach.

Are Bluelight filter Apps Good Enough?

Now we have arrived at the major part, and the simple answer is NO! While the Bluelight-filter apps help to reduce the amount of blue lights from our screens, they still aren't good enough to prevent eye problems associated with light exposure. Besides, the distortion and discoloration they cause can lead to more severe eye strain than viewing a screen without the Apps.

For instance, LED light includes both blue and white light, and they provide the backlight to your devices. The Bluelight Apps cannot filter the backlights, which is part of the white light. They can only be effective when used to support the work of filtering glasses.

Again, the intensity of light from the sun and fluorescent bulbs are far higher and more harmful than that from smartphones, televisions, and computers. So, using Bluelight filtering apps on fluorescent light would only do your eyes more damage than good. These apps are not just good enough for all sources of blue light.

What's the Best Solution for Blue lights?

To fully protect your eyes from all sources of blue light; what you need is an eye wear or filtering glasses that is built to filter out all blue lights from getting to your eyes. You can get the best filtering glasses here. They are perfect for protecting you from the harmful effect of blue lights.

So do you now see that Bluelight filter apps aren't good enough to protect you from the blue lights emitted by your laptops and smartphones? Physical filters like the blue-blocking glasses are simply the best solution. You can visit our site to see the best choices of filtering glasses available for you.