blue light filter for pc

CareUEyes is a blue light filter for PC, it can filter out Blue Light and relieve computer eye strain to help you sleep better.

CareUEyes is a blue light filter software for PC, it’s very convenient and easy to use, you don’t need to measure the size of the monitor, and you don’t need to install a plastic screen protector on the monitor.

Using software to filter blue light is probably the cheapest and most efficient way. You no longer need to buy blue light glasses and blue light filter film to filter blue light. They are not only consumables but also lack flexibility.


blue light cause eyestarin

Blue Light Explained

Macular Degeneration Blue light (HEV) penetrates all the way to your retina and has been shown that too much exposure to blue light can damage light sensitive cells in the retina. This causes changes that are similar to those of macular degeneration, which can lead to permanent vision loss. Many eye care professionals have concerns that the blue light exposure from digital screens might increase a person’s risk of macular degeneration later in life.

Digital Eye Fatigue Short wavelength, high energy blue light scatters more easily than other visible light and makes it not as easily focused. When you’re looking at your digital screen that emit significant amounts of blue light, this unfocused visual light reduces contrast and can contribute to digital eye strain.

Sleep Disruption Blue light is very important in regulating circadian rhythm – your body’s natural wakefulness and sleep cycle. Exposure to blue light during daytime hours helps maintain a healthful circadian rhythm. But too much blue light late at night can disrupt this cycle, causing sleepless nights and daytime fatigue. People who use their electronic devices before bed have a harder time falling and staying asleep.

Why Not Block All Blue Light?

It’s well documented that some blue light exposure is essential for good health. Research has shown that high-energy visible light boosts alertness, helps memory and cognitive function and elevates mood.

In fact, something called light therapy is used to treat seasonal affective disorder (SAD) — a type of depression that’s related to changes in seasons, with symptoms usually beginning in the fall and continuing through winter. The light sources for this therapy emit bright white light that contains a significant amount of HEV blue light rays.

Also, blue light is very important in regulating circadian rhythm — the body’s natural wakefulness and sleep cycle. Exposure to blue light during daytime hours helps maintain a healthful circadian rhythm. But too much blue light late at night (reading a novel on a tablet computer or e-reader at bedtime, for example) can disrupt this cycle, potentially causing sleepless nights and daytime fatigue.


How To Filter Blue Light?

All computers emit blue light. For those who work long hours in front of the computer, the blue light filter for pc is an essential software to better protect the eyes, health, and productivity.

CareUEyes is a blue light filter for PC that controls the color temperature of the computer screen, monitor or display  to adjust the amount of blue light emitted, which can reduce our eye strain. You can freely adjust the blue emission of your monitor according to your usage habits, such as game mode, reading mode, editing mode, etc.

8 mode

The blue light filter for pc sets different color temperatures in the evening and during the day. In the twilight and early morning, the color temperature will smoothly transition from night to daytime, so that your eyes can adapt slowly. At night, the color temperature should be set to match the light in your room, and during the day, the color temperature should match the external light.

In addition to the blue light filter, CareUEyes also has the screen dimming feature. If the display is too bright or too dim, it will cause eye fatigue and visual damage. CareUEyes eliminates the visible flicker of the display backlight, which is the cause of eye fatigue and headache.

adjust screen brightness

I believe the blue light filter for pc is your best choice.


Windows 7 Night Light

Night light is a feature used to reduce blue light on Windows 10. It can protect our eyes from blue light and improve sleep.

But Night light is only available on Windows 10. Night light does not support Windows XP, Windows 7, Windows 8, and vista.

If you want to use Night light on Windows 7,you can use CareUEyes.

windows night light

Compared with Night light, CareUEyes is not just software that can filter blue light, but also has more eye protection features.


  1. CareUEyes has more preset “effects” than Night light

8 mode

Compared to Win10’s night light, CareUEyes offers a richer set of options. For example, CareUEYes offers many pre-set options, such as Office, Game, Movie, which will definitely help you find your favorite effect in the shortest amount of time.

Editing mode will invert the color, black to white, white to black, use the editing mode to read the text at night, which can greatly reduce blue light and reduce eyesight Stimulus. Win10’s night light does not have this feature.

Reading mode makes your screen look like E Ink screens, which is very suitable for reading text for a long time.


2. Independently adjust brightness and color temperature

CareUEyes allows you to adjust brightness and color temperature independently and even has shortcuts specifically designed for it. That is also not available in Win10 night light.

3.  Customize rules

If you sometimes need to process photos, but turning on the night light feature will make the color of the photo distorted. Imagine that you need to turn the night light on and off frequently. It will be a very troublesome period. But using CareUEyes will not have such troubles. You can customize the rules and automatically pause the color temperature adjustment when using photo processing software. You can also customize other rules, such as
automatically entering a default mode when using certain software.

4. Focus mode

 Focus mode helps you to read with greater concentration.

focus feature

5. Break timer

Staring at a computer screen for a long time can cause computer vision syndrome, including eye fatigue and discomfort, dry eyes, red eyes, blurred vision, headache, neck and shoulder pain, and so on.
Because humans usually blink about 15 times per minute. But when we stare at the computer or mobile phone screen, the number of blinks will be greatly reduced, which may lead to dry eyes and fatigue.
Sitting in the same position for a long time can cause tension and pain. Our back, neck, shoulders, and arms will feel the tension.
Taking a break every once in a while to look at distant objects can greatly reduce the symptoms of eye fatigue. The most well-known is the 20-20-20 rule, which means looking at a place 20 feet (6 m) away from you every 20 minutes for 20 seconds.

But if there are no extra reminders, most people will be immersed in work and forget to take regular breaks. CareUEyes will remind you to take breaks regularly. During these rest periods, you can stand up, walk around and stretch your body to reduce fatigue in your eyes, shoulders, neck, and arms.

Overall, Night light can just only adjust the color temperature, but CareUEyes can not only adjust the color temperature, but also has more eye protection features than Night light, and the user experience is more user-friendly than Night light.

How To Protect Eyes From Computer Screen

blue light cause eyestarin

The rapid development of the information age has made people more and more dependent on electronic equipment. We need to use computers to work, study, process emails, watch videos, and we cannot do without computers.
Have you ever calculated how long you are staring at the screen every day?
Investigations show that some people face electronic screens for more than 9 hours a day.

As we rely more and more on electronic screens, our eyes are unknowingly hurt. Do you feel your eyes are dry and astringent, and you can’t help but want to rub them with your hands? Or, occasionally feel a little blurred vision? Sometimes you even feel a headache.

In fact, this is a symptom of “Computer Vision Syndrome”. Other consequences include neurological symptoms such as chronic headaches and musculoskeletal problems such as neck and back pain. If you have not taken effective measures to protect your eyes, your work efficiency may be affected when the eye symptoms become severe.


Eye health is important to everyone. We should take measures to protect our eyes from computer screens, instead of waiting for eye diseases to be treated.

Here are 6 ways to protect eyes from computer screen.

1. Reduce blue light

We can see the picture displayed on the computer screen because the computer screen emits light. But the light emitted by the computer screen is more dazzling than natural light, and it also contains a lot of blue light that is harmful to the retina.

Blue light is light with a relatively high energy wavelength between 400nm and 480nm. It is part of the visible spectrum and can penetrate the lens directly to our retina, causing the atrophy or even death of retinal pigment epithelial cells. The death of light-sensitive cells will result in decreased vision or even complete loss of vision. This damage is irreversible.

Blue light can also cause macular degeneration. The lens of the human eye will absorb part of the blue light and gradually become cloudy to form cataracts, and most of the blue light will penetrate the lens, especially children’s lenses are clearer and cannot effectively resist the blue light, which is more likely to cause macular degeneration and cataracts.

Due to the short wavelength of blue light, the focus point does not fall on the center of the retina, but a little bit forward from the retina. To see clearly, the eyeballs will be in a state of tension for a long time, causing visual fatigue.

You may experience symptoms such as eye fatigue, headache, blurred vision, dry eyes, neck and shoulder pain.

It is a good way to use blue light filter software to reduce blue light and protect eyes from computer screen.

CareUEyes is one of the best blue light filter software. It filters blue light by adjusting the color temperature and supports free adjustment of the blue light filter intensity.


According to the most commonly used scenes in people’s daily life, eight preset modes are designed and the most suitable color temperature and brightness are configured for each mode. They are health, games, movies, office, editing, reading, customization, and pause modes.

8 mode


2. Keep a proper distance from the computer screen


We should keep a proper distance from the computer screen when using the computer. If the distance is too far, you will not be able to read the screen correctly. If it is too close, your eyes will tire easily.

What is the ideal distance from  the screen? A simple rule is to keep the screen at least one arm away from your arm and pay attention to adjusting the height of the desk and chair so that the line of sight is about 6-8 inches above the center of the screen. In addition, when looking straight ahead, your eyes should be flush with the top of the display.

This keeps our eye muscles in the most comfortable and relaxed state.

3. Don’t forget to blink

Under normal circumstances, the average person blinks 10 to 20 times per minute. Don’t look at it as a small gesture, the effect of blinking one’s eyes cannot be underestimated.

Blinking can make tears evenly distributed on the surface of the cornea so that the cornea will not become dehydrated and dry. The main function of blinking is to protect the eyeball and moisturize the cornea. But when we concentrate on looking at the computer screen, the blink rate will be greatly reduced, only blinking 3 to 8 times per minute. Therefore, many people experience dry and sore eyes after using the computer for a long time.

Don’t forget to blink your eyes after you concentrate on your work for a while. This will help keep your eyes moist and protect your eyes from computer screeen.


4. take regular breaks 


It is recommended to follow the famous “20-20-20” principle. This principle is to raise your eyes and look 20 feet away for at least 20 seconds every time you look at the screen for 20 minutes.

Stay away from the computer and focus on distant things, such as trees outside windows or office corridors. Close your eyes gently, then squeeze and hold for a while, then open and relax them.

You can also do eye exercises during rest time, which can help relieve eye fatigue and make your eyes feel better.

However, many people often forget to take regular breaks due to their busy schedules. CareUEyes can remind you to take breaks regularly. It is not a simple timer, it is far more intelligent than you think.


CareUEyes can intelligently analyze the time you use the computer, and when you actually work on the computer for the predetermined time, it will remind you to take a break.

For example, if you set a 20-minute break, but you temporarily leave the computer 5 minutes after you start to work due to other things, CareUEyes will pause the timer after you stop using the computer, and then resume the timer when you return to the computer to start working.  If you have been away for a long time and have not returned to work, CareUEyes will restart the timer after you return to work.


5. Adjust screen settings

Adjust the brightness and contrast on the computer screen. Don’t make your screen too bright, because the brighter the screen, the more blue light will be emitted, and too bright screen light is also a direct stimulus to the eyes, which can easily lead to eye fatigue.

For many computer screens, especially desktop screens, it is not easy to adjust the screen brightness. It may be difficult for you to find the entrance to adjust the brightness, but using CareUEyes can easily adjust the brightness of the screen. You can either use the progress bar on the program interface to make adjustments or use the hotkeys to make adjustments.

adjust screen brightness

If you often read pure text on the screen, you can try to set the screen to a black and white electronic ink style. At night, you can also reverse the color of the screen and turn a large area of ​​white background into black. The eyes are more comfortable.

CareUEyes’ reading mode and editing mode can help you achieve these two features.


6. Reduce glare

Change the bulbs to soft/warm varieties to create a comfortable lighting environment. Try to avoid placing the monitor under the lamps, because bright lights are most likely to cause glare. If you are really sitting directly under the light fixture, please dim the light. Turn off any lights behind the display, such as desk lamps.

Do not let your monitor face the window, because the bright light outside the window can easily cause glare. The ideal display position is 90 degrees to the window. But if you cannot adjust your position, please close the blinds or draw the curtains during the day to reduce glare.

Pay more attention to the prevention of eye diseases rather than treatment

Overall, you need to protect your eyes from many aspects. The eyes are very important organs for us to obtain information from the outside world. Everyone should take good care of their eyes and focus on preventing eye diseases rather than treating eye diseases.  Download CareUEyes and protecting your eyes from now on. There is nothing easier than downloading and installing software.


Anti glare computer screen


  You can use a premium anti glare computer screen to reduce the glare of your computer monitor. The anti-glare filter is available in two frame designs – flat or wrap, and which frame you choose depends on your display style and personal preference, and with either, you can virtually eliminate all UV rays that are reflected from the screen into your eyes. Anti glare computer screen helps reduce eye strain.

anti glare screen


  Look for an anti glare computer screen with the following features:

  • Optical glass.

  High quality optical glass is superior to plastic.

  • Anti-reflective coating.

  A good glass filter has a multi-layer anti-reflective coating on one or both sides of the glass looking for a filter that provides up to 95% or 99% glare reduction.

  • Transmission.

  There are a variety of light transmissions in the anti glare computer screen, from about 30% transmission to 65% or higher.

  The intensity of ambient light in the work area helps determine the level of transmission that works best for you – the greater the glare, the lower the transmission you may need to reduce glare on the display.

  • Anti-static.

  Removing excess static electricity from the computer screen is important to help minimize dust accumulation on your computer screen, which can reduce the legibility of characters and look for anti glare computer screen with anti-static features.

  • Easy to clean the coating.

  Anti-reflective coatings show fingerprints and can be difficult to remove. Look for an anti glare computer screen with easy-to-clean feature, just clean the filter with water and a soft cloth.

  • ISO 9241-7 compliance.

This will ensure that the filter you purchased has passed the highest standard glare reduction test.

Disadvantages of anti glare computer screen:   

  •   Can’t filter blue light
  •   Can’t adjust display brightness
  •   Can’t change your viewing habits
  •   Different production standards may cause eye fatigue
  •   Will distract users

Other options

  Screen protectors can be used as anti-glare devices, but they can’t change your viewing habits. In addition to using a computer screen, there are more ways to eliminate eye strain. We can use computer software to help us reduce eye strain.

Anti glare computer screen software

anti glare

  For example, CareUEyes is an eye protection software that filters 90% of the blue light and glare by adjusting the color temperature and brightness of the display, it also has a timed reminder rest function, try to use the timer to ensure that every 45 minutes away from the screen, get up and walk around Try to focus your eyes further, and its price is much lower than the anti-glare filter device, which may be the best choice.


Features of CareUEyes
  • blue light filtering
  • brightness control
  • predefined 8 modes
  • regular break
  • custom rules
  • stay focused

Blue light filter for computer screen of 2021

Are you looking for a blue light filter for your computer screen? You may have known some of the dangers of blue light.

Excessive exposure to blue light will not only lead to eye fatigue, macular degeneration, and other eye diseases but also reduce the secretion of melatonin at night and reduce our sleep quality.

Many people have to use the computer for a long time every day due to work reasons, but the computer screen can emit a lot of blue light.


The question is, how do we filter the blue light emitted by the computer screen?
Well, this is exactly what you will learn in this article.

Display brightness

The brighter the display screen, the more blue light emitted. You can appropriately lower the brightness of your monitor, especially at night. A screen that is too bright can easily make your eyes tired.

Blue light filter software


One of the best ways to filter blue light on a computer screen is to use a blue light filter application.

CareUEyes is an excellent eye protection software, it is one of the best blue light filter applications on the PC. It can prevent eye fatigue, relieve eye pain and vision problems.


Many users verify the effect

If you are sensitive to light or have migraines when using a computer, then you should try CareUEyes (CareUEyes has a seven-day free trial period).

In the four years since CareUEyes was launched, we have received many emails from people who are sensitive to light in our back-end feedback.

They reported that after using CareUEyes, the eyes become relaxed and comfortable immediately, and they are no longer bothered by light sensitivity when using the computer and can work for a longer time.

We have just opened Facebook, and we have received many good comments from users.



We once received an email from a patient with FND, MS, and neurological diseases. She said that she had never been able to use bright lights because it would cause migraines and diseases. But after using CareUEyes, her symptoms were relieved immediately.

Price advantage

Compared with physical filtering equipment such as anti-blue glasses, CareUEyes is cheaper, will not be depreciated or damaged, and can be used for life.

Adjustable blue light blocking rate

CareUEyes filters blue light by adjusting the color temperature, because the higher the color temperature of the computer screen, the more blue light is emitted, and vice versa.

Therefore, with CareUEyes you can adjust the blue light blocking rate arbitrarily (but the physical filter device cannot adjust it).

Why do I emphasize this point? Because it is very useful.

In the daytime, the color temperature should match the external light, and 5000K-5500k is recommended. This can eliminate the damage to the eyes caused by the accumulation of blue light energy, and at the same time, there is an appropriate amount of blue light to keep people awake during the day and be more energetic to deal with this day’s things.

At night, the color temperature should be set to match the light in your room, and a low temperature of 3700K-5000K is recommended. At this time, we don’t need blue light to suppress melatonin secretion, and the body does not need to be in a state of excitement. The beneficial blue light during the day has been transformed into harmful blue light at this time.

On the contrary, we need to secrete melatonin to a certain concentration, which will help us fall asleep and ensure good sleep quality.

Through the comparison of blue light intake at different time periods during the day and night, the changes in the concentration of melatonin can be better adjusted, and the quality of night sleep can be further improved.

As long as you turn on the sunrise and sunset functions, CareUEyes can automatically switch between the two modes for you according to the time of sunrise and sunset.

Eight preset modes

CareUEyes provides eight preset modes, you can switch between pause, health, game, movie, office, editing, movie, reading, and customization at will.

Each of these options provides a slightly different experience for the user and changes the brightness of the display to suit a specific task or activity.

If you are not satisfied with the preset mode, you can also modify the preset mode.

Adjust display brightness

CareUEyes has the function of adjusting the brightness of the screen to protect the eyes more comprehensively.

For many monitors, adjusting the screen brightness is very troublesome. Using CareUEyes can easily adjust the screen brightness. Not only can you adjust the brightness by dragging the progress bar on the main interface, but you can also use the hotkey to adjust it more conveniently.

Remind to rest regularly

Regular rest is an effective way to prevent eye fatigue. The famous 20-20-20 rule: Every 20 minutes, look at an object 20 feet away for 20 seconds.

If you are busy with work, you may not have time to stop and rest frequently, because this may reduce your work efficiency.

CareUEyes reminds you to rest for 5 minutes every hour by default, but the interval and duration of rest can be customized.

This is not a simple timer, it can intelligently detect your use of the computer.
For example, if you leave the computer midway, the timer will automatically pause. After a certain period of time, the timer will restart when you return to the computer.

Many people, because of their busy work or minors with low self-discipline, know that they cannot leave the computer to take a break when it is time for a break.

For the above-mentioned people, you can use CareUEyes’ forced rest mode and turn on the password protection function, so that you will not miss the rest.

CareUEyes is a product you will love after using it.


9 ways to protect eyes from blue light

What is Blue light

Blue light, also referred to as high-energy visible light, ranges from 400 to 500 nanometers. This is low on the visible spectrum, closer to the harmful end. It can penetrate the lens directly to our retina.

where does blue light come from?

Blue light exists not only in sunlight, but also in various electronic screens such as computer monitors, fluorescent lamps, mobile phones, digital products, LED displays, and projectors.

Why is blue light bad?

The main hazard of blue light is eye damage. The specific hazards are as follows:

1. Age-related macular degeneration:

The most significant damage caused by blue light to the human eye should be caused by Age-related macular degeneration, accompanied by decreased vision.

2. Digital eye fatigue:

Blue light is easier to scatter than other visible light and is not easy to focus on. This visual “noise” when looking at digital devices reduces the contrast and causes digital eye fatigue. You may experience eye fatigue, headache, blurred vision, dry glasses, neck and shoulder pain.

3. Blue light can cause damage to the fundus after cataract surgery.

4. Insomnia

All artificial light affects sleep, but among all kinds of artificial light, blue light has the greatest effect on sleep. Excessive exposure to blue light at night will inhibit the production of melatonin in the body. Insufficient secretion of melatonin in the human body will make it impossible to fall asleep, which causes insomnia.

9 ways to protect your eyes from blue light

1. Use blue light filter software

For people who need to use the computer for a long time every day, using blue light filter software is a very good choice.

CareUEyes is an excellent comprehensive eye protection software that filters blue light by adjusting the color temperature. The lower the color temperature, the less blue light emitted by the screen.

In addition, CareUEyes also has the feature of adjusting screen brightness and timing lock screen reminder to rest. They can use the forced rest mode to rest for those who with poor self-control and unable to rest on time.

CareUEyes has 8 preset modes, allowing you to quickly find the screen color temperature and brightness that suits you. You can also modify the preset modes and customize your own model.



CareUEyes also has sunrise and sunset feature, you can set the different color temperatures and brightness for day and night, CareUEyes will automatically switch between sunrise and sunset. Compared with the daytime, more blue light needs to be filtered at night to avoid affecting sleep.

blue light filter

2. Reduce eye use time and take regular rest

If we stare at the mobile phone and computer for more than ten hours a day, our eyes will suffer long-term damage from high-energy blue light radiation.

After using your eyes for a period of time, you can blink your eyes or rest your eyes more to reduce the time of eye use. The most useful at the moment is the 20-20-20 rule.

For every 20 minutes of using the screen, you should try to move your sight 20 feet away from you for a total of 20 seconds. You might say, how can I tell where is 20 feet? Actually, you don’t need to be so precise. You just need to look far away as much as possible, such as looking at the scenery outside the window, walking in the office corridor, or standing up and stretching, looking at the distance, and then pour a glass of water.

Regular rest can provide your body with agility and improve work efficiency. The eye care software CareUEyes can simplify these steps. It allows you to perform these steps more easily without stress





3. Wear anti-blue glasses

The anti-blue lens has a special coating to filter some blue light. One advantage of blue light glasses is that they can also filter the blue light emitted by the sun, TV, and LED lights.

4. Replace LED lights with incandescent lamps

Led lights emit a lot of blue light. It is recommended to use incandescent lamps because incandescent lamps do not flicker and there is very little blue light in the spectrum.

5. Use screen filters

Screen filters can be used on most models of laptops, tablets, and mobile phones. These filters can be easily installed on the device without damaging the original manufacturer’s screen or interfering with touch sensitivity. If your child uses a computer to play games or do homework, these features are particularly useful, because, without supervision, the child is less likely to wear blue-light blocking glasses, but it is not portable enough and more expensive, different manufacturers’ Screen filters will also have varying degrees of quality differences

anti glare screen

6. Do not try to use the device directly before going to bed

Excessive exposure to blue light can cause restlessness and insomnia. Set a limit to turn off the device at least one hour before bedtime and charge the device in another room so that you don’t try to turn it back on.

7.Intraocular lens (IOL)

After cataract surgery, the cloudy lens will be replaced with an intraocular lens (IOL). The lens naturally protects the eye from almost all ultraviolet light and some blue light. There are types of IOL that can protect the eye and retina from blue light.

8. Eye nutrition

By eating foods or supplements rich in key nutrients, you can support the natural protection of your eyes. Lutein and zeaxanthin are naturally found in foods such as spinach, kale, and other green leafy vegetables. Nutritional supplements can also be used to ensure adequate daily intake.

Michael A. Smith, MD, said: “Natural retinal antioxidants such as lutein and zeaxanthin cannot regenerate fast enough to keep up with the harmful blue light that destroys the surrounding environment.” “We all quickly become deficient in lutein. . And because blue light-emitting devices are useless, the risk of macular degeneration is also increasing. Daily supplementation of lutein and zeaxanthin must maintain macular pigment density.”

9. Check your eyes regularly

The optometrist recommends that people in their 40s have an eye exam every two years and discuss with an eye care professional about the choice of ways to protect their family and eyes from blue light

Editor’s Choice:  Blue Light Filter Software

Blue light filter software is your best choice, why? First of all, it is very portable. You don’t need to worry about whether it matches the size of your display. Second, you can customize the intensity of the blue light filter. After all, everyone’s sensitivity to light is different. In addition, it is better than other solutions. To be cheap and reliable, you can download the blue light filter software CareUEyes from here

WordPress 2.0.6

UPDATED: 01/07/07

WordPress 2.0.6 was released 3 hours ago and it includes an important security fix. All WordPress users are advised to download and install this latest release.

What’s new for this version:

* The aforementioned security fixes.
* HTML quicktags now work in Safari browsers.
* Comments are filtered to prevent them from messing up your blog layout.
* Compatibility with PHP/FastCGI setups.

Me, I’m gonna wait for a few days and see if there are any problems with this WordPress version before I go and install it. A lot of users complained about having problems after installing and upgrading to the previous version, WordPress 2.0.5. For the meantime, I’ll just go ahead and download it and wait for the right time to install it.

Before you proceed with the upgrade/update, make sure that you backup all important files such as the wp-content folder and custom files. Another safety measure is to deactivate all active plugins so that you can avoid having issues caused by conflicts with running plugins.

Dowload WordPress 2.0.6 here

I’ve just upgraded to WordPress 2.0.6. I recommend that you should do too to fix any security flaws that your blogs might have.

Best alternative to f.lux

These days, when the use of technology in every field of our life is increasing rapidly, we are automatically forced to keep our eyes open for a longer time in front of the computer screen. This is natural. Our work demands that. We can’t completely ban the use of these devices from our lifestyle. But, we can take protective measures to reduce their bad impact on our health. This is why we need light filter applications in these devices. These applications adjust the display settings to comfort our eyes. There is much such software in the market. But, here we will compare the two most prominent ones: f.lux and CareUEyes.

In order to get a wider view of the differences, advantages, and disadvantages, we will compare both the products side by side. Here we will have a detailed look into the UI and some common features that this software has to offer.


The home screen of f.lux looks fancy and has the display temperature control on it. It looks pretty decent. But In order to access its advanced features, you have to dive deeper into menus. Now, it is completely ok to dive deeper. But, the only thing that feels wired is its dialog boxes. The dialog boxes don’t match up with the style of the home screen. Moreover, on the home screen, there are values like Circadian Darkness, location coordinates, and wake-up time.

blue light filter

On the other hand, CareUEyes also has a great UI. It is surrounded by a lot of options in a single panel. It is easier to use and does not need to switch into nested menus. You can easily find any of your desired options without diving deeper. Moreover, it gives you the vibes of a genuine piece of professional software.

Blue Light Filter

Night-time exposure to blue light makes people more alert and also affects their circadian timing. A wide range of lights appear to be able to stimulate the circadian system in humans, and so while we refer to “blue light” in order to distinguish it from the light our visual system sees, it includes lights that appear green, blue, cyan, and even orange.

blue light filter

CareUEyes also has decent blue light filtering. Its blue light filtering is embedded in its display panel. CareUEyes can automatically filter the blue light and make the screen look warmer and comfortable to the eyes so that your eyes do not feel tired, and this application comes with several presets that adjust both color temperature and brightness such as normal, smart, office, game and night. Also, the inbuilt modes are well customized to suit the different nature of work environments.

Brightness adjustments

In its brightness adjustments, it has three controls: daytime, sunset, and bedtime. Also, it has temperature adjustment controls on the home screen. Moreover, there are many presets that help you to choose the best setting for your environment without any manual tweak. But, there are so many options that you need to play around with it for some time.

pause mode

CareUEyes also has an amazing panel to control the brightness. It allows equal control over the warmth and brightness. A good setting will definitely prove it worthy. It gives you limited controls and makes it easy for anyone to use it. No unnecessary and redundant progress bars to confuse the users.


f.lux lacks this feature. There is no such feature as a timer in f.lux.

CareUEyes provides rest notifications to keep you from working for too long at a time. It is very important to take regular breaks, and it’s not just your eyes that benefit from them. This application can ensure that you don’t forget to rest every now and again, by displaying desktop notifications for a specified amount of time. Furthermore, CareUEyes has a special and exceptional feature called Force Rest. This features locks down your controls forcibly by removing your controls over them for some time. After the time is passed, it automatically sets everything back to normal.

Types of presets

Both the applications have some presets to quickly switch to a setting to adapt to the current work environment. f.lux has modes like movie, dark room, vignette, grayscale, soft white, blue sky, macular pigment, emerald city, Himalayan salt lamp, and civil twilight.

8 modes

CareUEyes has modes like pause, custom, game, movie, office, night, editing, and reading.

f.lux has more presets. But, the nomenclature of the presets in f.lux is a bit confusing. You have to play around a bit to find the best one for you. On the other hand, CareUEyes has relatable names for its presets. You can find the best one in no time.

Other features

As far as other options are concerned, both apps have a lot of features embedded in them. f.lux has features like hotkeys for enable/disable toggle, change brightness, and change color. This feature is one of the best features I find on f.lux. This is because many times we have to work on the computer in a variable environment. In such cases, without these shortcut keys, we have to open up the panel, go to the option and change the brightness. But, with these hotkeys, it becomes so simple and quick.

Also, f.lux supports a connected lighting feature. Using this feature changes the surrounding light of your studio. Especially for professional editors and video creators who work in a studio with surrounding lights, this is a great feature. But, not all lights work with this feature.

focus feature

Coming to CareUEyes, it has some great features like Focus. The feature itself is self-descriptive from its name. It helps the user to focus on their work. Now is the Internet age. Every day, there are instant messages, emails, and short messages that interfere with our work. When reading articles, we can’t be interfered with by other information. In order to improve reading efficiency, we need to force ourselves to stay focused and avoid other content dispersion. CareUEyes’ Focus function can help you. It is a unique feature of CareUEyes Pro that prevents you from interfering with other window content to keep you focused. Also, when the mouse moves, the focus window will move with it.

Moreover, CareUEyes provides the feature of hotkeys. This feature needs no introduction. But, one special feature about the hot hey feature is that it works with the focus feature. Just a simple combination of keys and your focus stays intact. Again, CareUEyes provides a more flexible hotkey feature as compared to f.lux. f.lux has hotkeys only for three parameters: enable/disable toggle, change brightness, and change color. But, CareUEyes has hotkeys for four parameters: brightness, color adjustment, toggle reading mode, and toggle editing mode.

sunrise sunset config

Again, CareUEyes has a great feature in its Display options. It’s the sunrise and sunset feature. This feature enables the application to automatically adjust the preferred setting according to the time. Furthermore, there is another stunning feature that allows you to add customized rules to the application. This feature ignores brightness adjustments on specified screens. This is a great feature when you decide to enjoy a movie after a whole day of work. It is very easy to setup. Adding a rule is just three clicks away. Simple, isn’t it?



f.lux is completely free for personal use. But, CareUEyes has a trial period after which you will have to buy a license for $14.90.

f.lux is great for students. But, if you are working on a professional level, CareUEyes has some premium features for you.

More information


This was a comparison between f.lux and CareUEyes. Both are great software. I recommend you to use any of them which suit you the most. Thank you.


best anti blue light screen protector

As we spend more and more time using electronic screens, the harm of blue light to human eyes has gradually attracted attention and attention, so a variety of blue light filtering products have emerged.

There are currently four main ways to filter out blue light on the market:

1. Anti blue light software

2. Anti blue light filter glasses

3. Anti blue light filter display

4. Anti blue light screen  protective film

Faced with a wide range of blue light filtering products, how should we choose? Today we will discuss the advantages and disadvantages of these blue light filter products

Anti blue light software

The principle of filtering blue light: filter blue light by adjusting the color temperature. Do not change the hardware configuration of the display, process internal signals before image imaging, and filter out blue light

Effect on-screen color: the more blue light is filtered, the yellower the screen

Blue light filtering range: The amount of blue light that needs to be filtered can be adjusted by itself, which can filter out blue light of all bands

Convenience: very convenient, just install the software

Tips: CareUEyes blue light filter software has 8 blue light filter modes, such as health, game, office, and reading modes. Different modes filter blue light by different percentages. You can choose the blue light filter mode that suits your needs. Different amounts of blue light filtering can be set during the day and night. Usually, more blue light needs to be filtered at night. When you need to process pictures, you can add custom rules-when the software is running in the foreground, it will automatically pause to filter blue light.



Comfort: When the blue light is filtered out, the computer screen will turn yellow, but there will be no other adverse effects.

Price: CareUEyes Pro is 14.9 US dollars a year, 39.9 US dollars lifetime. One purchase, multiple computers can be used, can be shared with family members, in addition, CareUEyes is an excellent comprehensive eye protection software, it can not only filter blue light but also adjust the screen brightness, as well as regular reminders to rest.





Anti blue light glasses

The principle of filtering blue light: reflect harmful blue light through the coating on the surface of the lens, or use the principle of color bleeding, through the principle of optical complementary color, to infiltrate the blue complementary color yellow into the lens material and absorb the blue light by the pigment, thereby realizing the harmful blue light The barrier

Effect on the screen color: The mirror reflected by the grinding layer is transparent, and the lens absorbed by the substrate is yellowish. The higher the degree of anti-blue light of the glasses, the yellower the lens and the greater the chromatic aberration.

Blue light filter range: The blue light blocking rate of lenses produced by different manufacturers is different, ranging from 30% to 90%. Glasses with a yellowish background are generally better than transparent lenses in blocking the harmful blue light. But the blue light filter range of the same glasses cannot be adjusted.

Convenience: It is not convenient to wear glasses, and many people are unwilling to wear glasses.

Comfort: 1. It is not convenient to wear glasses. 2. The blue light filtering effect of transparent lenses is poor, but the yellow lenses affect the appearance. 3. Put on yellow lenses to see that everything is yellow, not just the computer screen. 4. The blue light filter glasses on the market have different light transmittances. It is recommended to choose lenses with a light transmittance of 91% or more. If the light transmittance is insufficient, it is as if people stay in a dimly lit room for a long time, and their eyesight will also be affected. 5. Another thing to pay attention to is reflectivity. After some glasses are worn, you can see the reflective spots of messy light on the lens. Some people ignore this in daily life, but cluttered light is bad for people in terms of comfort and health. Good lenses will be coated to reduce the reflection of messy light.

Price: The price on Amazon ranges from $5 to $1082. Everyone who uses a computer at home needs to buy a pair of exclusive glasses

Anti blue light screen  protective film

The principle of filtering blue light: reflect harmful blue light through the surface coating

Impact on-screen color: will not affect the true color of the image on the screen

Blue light filtering range: The blue light blocking rate of screen protectors produced by different manufacturers is different, and it can block about 45%~61% of blue light.

Convenience: The screen protection board must match your monitor. If you change the size of the monitor, you need to replace the protection board again. The protective plate also needs to be cleaned frequently, otherwise, there will be stains or fingerprints on it.

Comfort: 1. The anti-blue screen protector will reflect light. If you have a light or window behind you, it will turn your computer screen into a mirror. 2. Another thing to pay attention to is the transmittance of the screen. Insufficient transmittance will affect the clarity of the screen. 3. The fit of some screen protectors and monitors is not good, which results in blurry monitors and unclear text and images.

Price: The price of Amazon ranges from US$16 to US$273, depending on the brand and screen size. Computers of different sizes cannot be shared, especially the sticky notebook screen protectors. Frequent disassembly is not a good idea.

Anti Blue light display

The principle of blue light filtering: wrap the blue light filter floating layer on the small lamp beads on the screen, this floating layer will filter out the harmful blue light of high energy shortwave

Impact on-screen color: will not affect the true color of the image on the screen

Blue light filter range: provide multiple modes to filter blue light, filtering up to 70% of blue light

Convenience: Need to replace the display

Comfort: Does not affect the color of the screen, which is great.

Price: The display needs to be replaced. At present, there are few blue-light filter displays on the market, and the price is relatively expensive, which is not suitable for public demand. Blue-light filter displays are expensive and have few products, which are not suitable for mass consumption.

The following will compare blue light filter software, blue light filter glasses, and blue light screen protectors.

Blue light filter range: Blue light filter software > Blue light filter glasses > Blue light screen protector

Convenience: Blue light filter software>Blue light screen protector>Blue light filter glasses

Impact on-screen color: The blue light filtering software can be adjusted, the more blue light is filtered, the yellower the screen. Glasses with a background color vary according to the depth of the background color, and transparent glasses do not affect the color. The anti-blue screen protector does not affect the color.

Comfort: The blue light filtering software has no adverse effects except for affecting the color of the screen. Blue light filtering glasses and anti-blue screen protectors will have light transmittance and reflection problems.

Price: The blue light filter software is the most cost-effective, and it can also be used by multiple computers

In summary, the blue light filtering software is very suitable for the needs of the general public. It can filter blue light in a large range and can set different blue light filtering amounts during the day and night, and the price is low. Blue light filtering software can also promote sleep and prevent sleep disturbance caused by excessive blue light exposure at night and insufficient melatonin secretion. Anti-blue light glasses are powerless. But if you have very high color requirements, anti-blue screen protectors or transparent anti-blue glasses are also a good choice but pay attention to the influence of light transmittance and reflection.

Anti blue light filter software
Anti blue light filter glasses
Anti blue light protective film
Anti blue light display