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harmful blue light main sources

Do Blue Light Filter App Work

What is the blue light filter app?

Blue light filter app is a software as blue light filter that could block or reduce blue light from our digital device.

From this article, you could know about these knowledge:

  • What are the effects of blue light on eye health?
  • What does a blue light filter do?
  • What kinds of blue llight filter could protect your eyes?
  • How blue light filter apps work? Are blue light filter apps effective?
  • What is the best blue light filter app?

The advent of impeccable technology and innovations gracing the world has impacted our lives in many ways. Today, there are amazing technological developments that will without a doubt, change your life in one way or another. Probably, you have heard or read about the blue light filter.

What is blue light of short waves-HEV

Blue light is the visible light spectrum that human beings can see with their naked eyes. However, blue light affects human beings in many ways. For instance, it can cause headaches, sleeplessness, fatigue, and eyestrain. Hence, the high demand for blue light filters.

Blue light filters help decrease the amount of blue light on the device one is using may it be a laptop, smartphone, or TV.

  • The filter you use can also help reduce digital eye strain, and your eyes won’t feel tired.
  • The blue light filter can also help you sleep better each day.

To reduce exposure to harmful blue light, you can use computer glasses, anti blue light screen protectors, use an app, power down at night, or step away from your screen.

What are the effects of Blue Light on Eye Health?

The primary concern among many health practitioners is that blue light can cause long-term effects on your eye health. Blue light may affect your vision as well as age your eyes prematurely. Research has shown that too much exposure to this light can lead to digital eyestrain. Blue light from digital devices can lead to digital eye strain, and key symptoms for digital eye strain include

  • Dry eyes
  • Fatigue
  • Sore and irritated eyes and
  • Difficulty focusing
Blue light damage

Blue light can lead to retina damage. Blue light can penetrate via your retina and cause retinal photochemical damage. Continued exposure to blue light can damage your retinal cells and vision problems such as age-related macular degeneration (AMD).

What Does a Blue Light Filter Do?

A blue light filter is one technological innovation you shouldn’t have any reservations utilizing. It helps reduce the amount of blue light displayed on the screen of your laptop, smartphone, tablet, or any other device you use. Using this filter helps reduce the effects of blue light on your eye health and other related complications.

What Kinds of Blue Light Filter Could Protect Your Eyes?

Blue light can affect your day-to-day life, and it is excellent to protect your eyes. It starts by keeping in mind that blue light filters can offer maximum protection to your eyes. With this in mind, here are top-notch types of blue light filters to go for in the market:

1. Blue Light Filter App

A blue light filter app can help mask the user from blue light. This filter app helps shift the color tone of what is on the screen to warmer tones of the light spectrum to red, yellow, or orange. This app helps reduce some of the light emitted by the screen display.

blue light filter apps list

For maximum protection, you need to use your filter apps with light filtering glasses or blue light screen protectors.

Most of the digital devices we use these days come with a built-in app to protect eyes from blue light. However, you must know how to utilize and customize your device to work with any filter app. Blue light filter apps are designed for nighttime and evening use so that your eyes can properly relax during these hours.

2. Anti blue light Screen Filters

Screen filters make it effective to attach a screen-protecting filter to the front side of your device. Screen filters have a material that helps filter out blue and UV light. These filters are great if you primarily use one device. However, if you use multiple devices, you will have to buy various and different sizes and styles of screen filters.

medical-grade blue light filter screen protector banner

PERFECTSIGHT Medical-grade anti blue light screen protectors

3.Blue Light Blocking Glasses

Blue light blocking glasses are lenses designed in a way that they can effectively block blue light emitted by digital screens. These glasses can protect your eyes against glare and retina damage

anti 6 radiations blue light blocking glasses banner

PERFECTSIGHT Medical-grade blue light blocking glasses

Know about how to correctly test blue light blocking glasses or lense

PERFECTSIGHT Medical-grade blue light blocking glasses

How Blue Light Filter Apps Work?

Blue light filter apps do work, and they are useful in filtering out blue light if adequately used. These apps work in a simple manner whereby they can shift the color tone of your digital device. They convert the harmful HEV light to red, orange, or yellow tones.

An effective app will be able to reduce screen brightness and protect your retina against blue light penetration. However, make sure you get the best blue light filter app and protect your eyes.

Are Blue Light Filter Apps Effective?

Blue light filter apps do effectively work. However, you have to opt for the best apps at your disposal. Blue light filtering technology is excellent, and it can aid prevent common eye problems caused by exposure to blue light and UV light. Overexposure to blue light leads to many adverse problems, but blue filter apps offer a way to minimise your exposure to this light.

Blue light apps are useful in shifting the color tone of what displayed on your digital device to warmer color spectrums. The blue light emitted is reduced, and the screen of your device acquires red, yellow, or orange sheen. These apps also help create a transparent layer over your device display and reduce the amount of blue light it emits. In light of this, you should learn more about the best blue light filter app iPhone or any other smartphone model you use.

What Is The Best Blue Light Filter App?

1.Night Shift

Night Shift is one of the incredible blue light filtering apps for Apple devices. This active app makes it easy to change the color of your smartphone display, and you can view it on power-saving mode. Using this app, you will not suffer from eye fatigue, and you can use your phone without feeling sleepy or nauseous.

2.Night Mode

Night Mode is a great blue light filtering app for android phones, and it’s compatible with android and other versions. It provides better power usage, automatic filter schedule, and color and RGB customization. This app comes with features similar to those of Night Shift.


Twilight is an excellent app for android-based devices. It automatically adjusts your screen based on your location. It’s great for nighttime screen activities that are likely to interfere with your sleep. This app also mounts a red and blue filter to protect your eyes.

4 F.lux

F.lux is the most popular app design for filtering blue light, and it’s compatible with many Android and Apple devices. It helps adjust your display to a more natural color spectrum. This app also changes from daytime to nighttime hours when using your device. F.lux app also uses the color transform approach to filter out blue light.

5. Iris

Iris is a free to use blue light filtering app and quite easy to use. This app helps improve your use of digital devices. It features timers, blue light filtering, contrast adjustment, blocking options, color adjustment and breaks reminders.

In Conclusion

There are many effective ways to protect your eyes from blue light. However, opting for the best blue light filter apps is a wise decision. These apps work effectively, and you should use them to protect your eyes from blue light emitted by your devices.

To enjoy better eye health, feel free also include a PERFECTSIGHT medical-grade blue light screen protector and blue light blocking glasses in your collection. Visit https://www.perfectsight.co/ for more information.

anti blue ight screen protector

How to choose a cell phone screen protector?

Cell phone screen protector also known as mobile phone film, mobile phone beauty film, mobile phone protective cover, is a kind of cold compress film that can be used to install panel mobile phone casings, screens and other tangible objects.

When you want to buy a cell phone screen protector for your new phone.

Seller: “What kind of screen protector you want, $10, $20, or $30? “

Customer: “Which is better?”

Seller: “Of course, the more expensive, the better.”

Customer: “I choose the mideum.”

If you are not familiar with screen protectors, you will be doubt about what the sellers say. The reason is that you don’t know how to choose a mobile phone screen protector and you don’t know which one is more suitable for your phone. Below we will answer your questions about how to choose a mobile phone screen protector.

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anti blue light glasses for people

The Importantce of Blue Light Blocking Glasses

In the current lit-up world, it is essential to regulate the timing and how we consume blue light.

Blue ray control was not something our ancestors had to deal with, as compared to today’s world. Blue light is becoming a menace, especially with the adverse effect on sleep and health when in excess.

Too much exposure to blue light at an unwanted time increase the chances of health hazards to an individual.So considering the use of blue light blocking glasses is vital

What is blue light?

It is a color in the visible light variety which can be noticed and seen by human eyes. It is the shortest wavelength of light, meaning that it emits lots of energy for utilization.

Blue light is a range of the visible light spectrum, defined as having a wavelength between 400−495 nm. This short wavelength means that blue light is a type of HEV (high-energy visible light), defined as having a wavelength between 400 and 450 nm. Because the blue/violet band of the visible spectrum has a particularly high frequency.

What is blue light of short waves-HEV

Where does blue light come from?

Apart from other light wavelengths, sunlight comprises blue light. Also, energy-saving and digital lighting, which are highly used, enclose a high concentration of blue light.

Other sources of blue light include smartphones, tablets screens, televisions, laptops screens, and LED lights, among other technology devices.

blue light sources

What is the damage of the blue light?

Not all instance of exposure to blue light is harmful or have detrimental effects on the health of an individual.

  • Damage to sleeping

However, continuous exposure to screens of technology devices such as tablets and bright environment at night lead to excess uptake of blue light which is harmful. The disclosure is at the very worst time when the individual should be sleeping.

Some of the detrimental effects associated with blue light to humans include lack of sleep due to inhibition of sleep causing hormone. Individuals experience fatigue after sleep because of short sleep time caused by frequent awakenings in the night.

Also, the blue light stimulates the production of stress-causing hormones, which have adverse effects on health and sleep.

  • Damage to eyes and human cell

Research indicates that blue light causes human cell damage, which contributes to problems related to vision. It has also been attributed to exposure to other critical diseases such as cancer and diabetes.

What are blue light blocking glasses?

It is a particular type of glass fitted with filters in the lenses to absorb or block blue light and, in some instances, other detrimental lights from getting through to the user’s eyes.

Therefore, the use of these glasses against screens can help reduce exposure to a wave of lights that can keep you awake, especially at night.

Exposure to harmful blue light does not mean the end of life. It is presumed that blue light blocking glasses are useful in filtering the blue light, thus restore healthy life to individuals affected. Wearing blue light blocking glasses means healthy sleep, thus reducing the chances of other risks.

anti 6 radiations blue light blocking glasses banner
anti 6 radiations medical-grade blue light glasses

Do blue light glasses work?

Basing on proven studies, participants using blue light filter glasses improve their sleep time and continue to use technology devices such as laptops for their works. Considering the harmful effects of blue sunlit, the blocking glasses have gained acceptance since it is exceptional technique to pacify eye strain and overcome disturbed sleep.

Continuous exposure to blue light can lead to blindness. It is proved that the blue-light filter glasses play a vital role in reducing potential eye damage and improve warning signs of computer vision conditions.

Therefore, the lenses of blue light filter are a great option

Should I get blue-light blocking glasses?

Light consumption levels vary per individual depending on how one is exposed to blue light.

Some spend more time travelling and others in front of technology device screens. All these share an ordinary risk of exposure to blue light.

Therefore, everyone needs to manage light exposure to reduce the chances of health risks related to blue light.

Blue-light blocking glasses are worth purchasing to reduce the chances of permanent eye problems.

However, some eye strains are temporary and can be reversed, and thus there is no need for special blue light glasses. The harm is not experienced in a single instance of exposure to blue light but constant exposure.

How to choose blue light blocking glasses?

Countless companies are offering blue light blocking glasses at varying costs. This is a prove of how critical health and sleep-related to exposure to blue light is becoming. Also, companies are aiming to fetch super-normal profit from increasing cases of eye problems. However, this is leaving individuals in the dilemma of selecting the right pair of glasses.

Some of the critical features in legit blue light blocking glasses are, have amber lenses that absorb blue rays from lighting sources and prevent them from reaching an individual’s eye.

Thus, patients should avoid glasses with clear lenses.

Before purchasing blue light filter glasses, it is necessary to request for laboratory-backed results to determine the level of blocking blue light and other harmful lights. A combination of blue light filter and anti-reflective reduce eye strain and over-stimulation resulting from light-rich environments.

The glasses should give the client the value of money.

  • It is worth spending more on unique frames that are easy to wear and feels good and comfortable.


  • The blue light Filtering glasses should have a warrant to replace them, thus increasing their lifetime use. There should be a point in the course of use to step-up or change the glasses.

Where to buy blue light glasses?

The glasses are available on prescription and non-prescription. There are numerous blue light blocking glasses sellers who include opticians and manufacturers.

Some online sites such as PERFECTSIGHT, Amazons also sell the anti blue light glasses.

PERFECTSIGHT Medical-grade blue light blocking glasses

  • To help block above 60%-70% of the blue light and 99% of UV ray, the color of the lens is light brown because of the advanced optical electroplating technology.
  • PERFECTISHGT Blue Ray Blocking Glasses Tested By American SOLAR LIGHT, approved by FDA Certificate, if not in fact,you could test the data of anti blue light glasses though sepcial optical instruments or institution
  • However eye care glasses of blue light filter on market only blocks up to 10%-20% of blue light from phone ,pad, computer’ screen , they couldn’t supply detailed data of blue light filter but also not tested by special optical instruments – spectrograph.

PERFECTSIGHT Medical-grade blue light blocking glasses

What is the blue light blocking glasses review?

Mike from United State


Jihan Felicien from United State

What is the right test way for your blue light blocking glasses or lenses?

Before know about how to test blue ight filter on my eyeglasses, it is neccesarry to learn the misunderstanding on test blue light at first.

  1. The “colorless blue light blocking lens”or “light yellow blue light blocking lens” tested bythe “blue light torch” is a pseudoscience.
  2. Actually, the light source of the blue light torch has a wavelength of 380nm-400nm, which should be called purple light
  3. While the light source from computers, mobile phones, LED screens and other electronic screens has a wavelength of 420-465nm, which called high-energy short-wave blue light, and it is harmful to the eyes.
  4. So the colorless/light yellow lens will not block the harmful blue light, they can only block the purple light, even long-term wearing will not protect the eyes.
anti blue light lense test metrod

There are several ways to test the credibility of blue light blocking lenses.

  • Some include a comprehensive eye exam under different colors. For eye patients, the right test to determine if the lenses are functional is improved eye health. Health is supported by increased sleep time and quality, improved cognitive performance, reduced stress and fatigue.
  • Also, the lack of eye strain after exposure to the light-full environment, especially at night, is a clear indicator and test for the glasses.

Know about how to correctly test blue light blocking glasses or lense

Blue light exposure is not specific to age or gender. The elevated risks related to its exposure can affect anyone. It is necessary to adopt strategies that reduce or control the chances of exposure to blue light. However, it may not be an effective method to protect most of us from excessive harmful rays.

Hence, considering the use of blue light blocking glasses is vital because the patient will be guaranteed continuous prevention of exposure whenever it is required.

phone and screen protector show

how to put on a screen protector perfectly

Applying Screen protectors properly without annoying bubbles or dusts for phones and tablets can be the most frustrating job.

In this article you’ll get some useful tips on how to put on a screen protector directly to avoid any bubbles or trapped dirts.

This methoud apply to different mertials’ screen protecotr for phone and tablets like tempered glass, plastic, PET film, liquid film, etc.

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