We spend a large part of the day using our mobile phones and many other kinds of electronic devices. excessive use of screens It can cause eye strain, dryness, headaches, and above all, a worse sleep quality When we use them at night. It is necessary then protect our eyesight and take care of our digital habits, something we can do with a couple of apps and small changes in how we use our phones before bed, just as there are snoring apps or to sleep better.
The blue light emitted by screens does not usually cause permanent eye damage, but it does contribute to computer visual syndromeEye strain, blurred vision, red eyes, difficulty focusing, and sleep disturbances. Furthermore, when looking at a mobile phone, we blink less, which contributes to... ocular drynessThat's why combining blue light filter applications Using good habits (20-20-20 rule, correct posture, adequate distance, etc.) is the best strategy to protect your eyes from mobile phone use before bed.
Twilight: protect your eyes in a simple way before going to sleep
Using your smartphone before bed can cause discomfort and disrupt sleep. This is due to the blue light emitted by most screens, which affects our eyes and our circadian rhythmTo avoid this, the simplest thing to do is filter that blue light and soften the cool tones of the screen. And that's what it does. Twilight, a free application available on the Play Store that places a red filter over the screen to protect us and make the light much warmer at night.
Once downloaded, Twilight allows you a series of configurations Very comprehensive to adapt it to your vision and your environment. You can set the color temperature to match the ambient light (warmer at night, more neutral at sunset), determine the intensity adjust the filter to better suit your needs, and set schedules Automatic on/off switches linked to sunrise and sunset. This reduces exposure to blue light in the hours before sleep, helping the body produce light. melatonin normally.
You can also use a GPS tracking Automatic activation lets the app decide when to activate based on your location, so you don't have to think about it every day. It also offers a button in the notification bar for easy activation and deactivation. Twilight when you need it quickly, for example if you're going to watch a video with more accurate colors or need to temporarily disable the filter.
Twilight complements other basic eye hygiene measures very well: you can lower the Brightness of the screen, increase the letter size to avoid straining your eyes and to respect the known 20-20-20 rule (Every 20 minutes, look at an object about 6 meters away for 20 seconds) during the day. All of this reduces accumulated eye strain and makes it much easier to go to night with more rested eyes.
Videographer: https://www.youtube.com/watch?v=Dz-fxVta3QM
F.lux - a veteran program only available for rooted phones
The other option if you are not convinced by Twilight is to use F.luxF.lux is a veteran program that already performs similar functions on Windows and Mac. It's a very good option. consolidated that places a orange filter on the screen to protect our eyes and make the brightness more comfortable depending on the time of day. Its Android app is relatively new and still in preview. Furthermore, it is only available for rooted devices, something you can learn to do with our Android rooting tutorials.
Furthermore, F.lux slightly varies its comportamiento Unlike other apps, instead of just setting a start and end time, it will ask you to set the earliest time you will get upand it will gradually increase the intensity of its filter as bedtime approaches, adapting the screen from cooler tones to much warmer colors. In this way, it also serves as reminder to go to sleep and get enough rest, reducing the temptation to continue using your mobile phone indefinitely at night.
It will also allow you to set different color temperatures depending on whether you're outdoors, at home, under a desk lamp, or in other specific scenarios. This way, you not only protect your eyes from blue light, but also optimize the contrast and visual comfort according to ambient lighting, which helps to avoid digital eye strain and the feeling of heavy eyes after many hours of use.
If you want to try Twilight, you can download it for free from the Play StoreYou can also purchase the Pro version to support its developers and unlock advanced features. Similarly, F.lux It is available for free, but at the moment it is just a preview version that works exclusively on rooted devices:
Other adjustments and habits to protect your eyes from your phone before bed
Applications like Twilight or F.lux are a great help, but they don't replace the importance of having good visual habits with your mobile phone and other screens. Integrating these adjustments into your nighttime routine will make a difference to both your eye health and your sleep. sleep quality.
Activate night mode or the built-in blue light filter.
Most mobile phones include a Night Mode or “eye protection” that reduces glare and changes cool tones to warm colorsIt doesn't completely replace advanced apps, but it does reduce the amount of blue light:
- On devices AndroidYou can activate options such as “Reading Mode”, “Night Mode” or “Eye Protection” from the menu. Settings > Display.
- En iPhone, the function Night Shift it is activated in Settings> Display and brightnessallowing automatic programming of the color temperature change.
Using these modes along with a moderate reduction in brightness decreases the excessive contrast When you're in a dark room, it helps prevent some digital eye strain and makes it easier for your brain to understand that it's almost time to sleep.
Pay attention to visual ergonomics: distance, posture, and brightness
In addition to the blue light filter, it's key to protect the distance to the screen and the position of the phone. Ideally, the device should be held at about 40-50 centimeters The screen should be positioned slightly below eye level, avoiding excessive neck tilt. A screen that is too bright or too dark forces the eyes to work harder, so it's advisable to adjust the viewing angle. brightness and contrast to the environment and avoid direct reflections from lamps or outdoor light.
When you use your phone lying in bed, try not to use it in complete darkness. soft ambient light This will reduce the contrast between the screen and the room, making it easier on your eyes. This, combined with a sufficiently large font size, decreases the accommodative effort and reduces the risk of headache or temporary blurred vision.
Blink more and control dry eyes
When we focus our gaze on a screen, we blink up to a 50% less, which favors the ocular drynessIf you usually use your phone before bed, take conscious breaks to blink several times in a row and close your eyes for a few seconds from time to time. If you notice irritation, a gritty feeling, or redness, it may be helpful to use [a specific product or service/treatment]. artificial tears recommended by a professional, especially if you spend many hours a day in front of screens.
Limit your mobile phone use before going to bed
Although blue light does not usually cause permanent eye damage, it does alters melatonin production and can delay falling asleep. Ideally, screen time should be limited to at least an hour before bedtimeA very simple strategy is to leave your phone charging outside the room and use a traditional alarm clockto avoid the temptation to keep checking notifications in bed.
Even after applying blue light filters, adjusting brightness, and reducing nighttime usage time, you still notice intense eye strain or sleep problems, it is advisable to see a ophthalmologist to rule out other causes and receive personalized recommendations. Apps are a complementary aid, but professional eye care remains essential.
Protecting your eyes from mobile phone use before bed involves combining technologies like Twilight or F.lux with small changes in your habits: adjusting brightness, activating night modes, maintaining a correct distance, blinking more, and reducing screen time in the hours before bedtime; with all this, your eyes will be more rested and your night's sleep will be of higher quality.