Xiaomi Phones Are Affecting Your Eyes: 7 Reasons and What to Do to Protect Your Eyesight

Have you noticed that after prolonged use of the Xiaomi smartphone, the eyes begin to water, there is a pain or dryness? AMOLED- and LCD-screens, despite the high quality, can cause digital eye fatigue (Computer Vision Syndrome), especially a problem for owners of models Redmi Note 12 Pro+, POCO X5 Pro or Mi 11 Ultra, where the brightness of the screen exceeds 1000 nits, and the refresh rate reaches 120 Hz.

In this article, we will explore the physiological and technical causes of discomfort, including the effects of blue light, backlight flickering (PWM), and incorrect color temperature settings. You will also learn how to turn off hidden MIUI features that increase the burden on vision, such as adaptive brightness with inflated thresholds or automatic color correction in reading mode.

1.Blue Light: Why It's More Dangerous Than You Think

Xiaomi’s screens emit blue light with wavelengths of 400–490 nm, which inhibits the production of melatonin, a sleep hormone, and causes photochemical damage to the retina when exposed to prolonged exposure. Studies show that 6 hours of daily smartphone use with a brightness above 50% increases the risk of developing myopia by 30%.

The Xiaomi 13 Pro and later use DC Dimming technology (without flickering), but it only activates when the brightness is manually lowered below 30%. Otherwise, PWM is used, which creates the illusion of dim light by quickly turning on / off the backlight.

• 🔹 Migraines in 15% of users (data from the Mayo Clinic)
• 🔹 Dry eyes due to a reduction in blinking frequency by 60%
• 🔹 Fatigue after 1-2 hours of continuous use

⚠️ Note: In the phones Xiaomi with AMOLED-screens (e.g. Redmi) K60) Blue light penetrates deeper into the tissues of the eye than into the eye. LCD. This is due to the peculiarities of organic LEDs, which emit light directly, without filtration.

2. PWM-The hidden threat to your eyes.

Most Xiaomi smartphones (except the flagship series) use pulse-width modulation (PWM) to adjust brightness. At brightness below 50%, the screen flickers at a frequency of 200-250 Hz — enough to cause subconscious stress in sensitive users.

• 👁️ Cutting in the eyes in 30-40 minutes
• 💥 Dizziness when scrolling the feed on social media
• 😴 Drowsiness due to an imbalance of neurotransmitters

You can check for PWM in your model using the test on the PWM Test website. For example, the POCO F5 flickers at brightness up to 40%, and the Xiaomi 12T Pro - up to 20%. The only solution is to keep the brightness at 70% or above or activate DC Dimming in the engineering menu (instruction below).

3. Incorrect screen settings in MIUI

MIUI firmware is designed to be "beautiful" by default, not eye comfort. Here are the key parameters to check:

To change these parameters:

1. Go to Settings → Display
2. Turn off Adaptive Brightness and Auto Brightness
3. In the Color scheme section, select Warm tones
4. Activate Reading Mode and set a schedule from 18:00 to 8:00

4.Dry eyes: why you blink 3 times less often

When working with a smartphone, the blinking frequency drops from 15 to 20 times per minute to 5 to 7. This leads to tear film evaporation and dry eye syndrome, especially dangerous for Xiaomi users with Always-On Display (such as the Mi 11 Lite), where the screen constantly highlights time and notifications.

Decisions:

• 💧 Use artificial tear drops (e.g. Sistein Ultra)
• ⏱️ Follow the rule. 20-20-20: every 20 For a minute, look at the object in 20 foot (6 within metres 20 seconds
• 🌡️ Install an air humidifier near the workplace (optimum humidity 40–60%)

⚠️ Note: Xiaomi’s Always-On Display feature uses minimal brightness PWM-If you're sleeping next to your phone, turn it off through Settings. → Lock screen → Always-On Display.

5. How to enable DC Dimming (without flickering) in the engineering menu

DC Dimming replaces PWM with smooth voltage adjustment, eliminating flickering, hidden in the engineering menu and not available on all models. Instructions for supported devices (Xiaomi 12/13 series, Redmi K50 Pro, etc.):

1. Open the phone app and dial ##36446337##
2. Go to DC Dimming (or DC Backlight)
3. Activate the option and restart the phone

After activation:

• ✅ The flicker will disappear at any brightness
• ⚠️ Perhaps a slight darkening of gray shades (especially noticeable on the Redmi Note 11 Pro).+)
• ⚡ Increase battery consumption by 5-8%

External factors: lighting and screen distance

Even Xiaomi’s perfectly tuned screen will hurt your eyesight if:

• 💡 You use your phone in total darkness (the contrast between the screen and the environment increases the load by 40%)
• 📏 Distance to the screen is less than 30 cm (optimally - 40-50 cm)
• 🔄 Turn your head often while watching content (e.g. when watching a video in landscape orientation)

Correction:

• 🔦 Use a warm night light (e.g. Xiaomi Mi) LED Desk Lamp) with color temperature 2700K
• 📱 Fix the phone on the stand at an angle of 20-30° (glare-reduce)
• 👓 Wear anti-reflective glasses (e.g. Xiaomi Anti-Blue Light Glasses)

💡

If you read frequently from your phone, install Moon+ Reader and activate Sepia mode, which reduces eye strain by 25% compared to the standard black and white mode.

7.When to see a doctor: alarming symptoms

If after adjusting the settings, the discomfort does not go away within 3-5 days, this may indicate:

• 🩺 Spasm of accommodation (false short-sightedness)
• 🔬 Inflammation of the cornea (keratitis)
• 🧠 Initial stage of glaucoma (increased intraocular pressure)

Contact your ophthalmologist if you notice:

• 🔴 Redness of proteins that does not go away after sleep
• 🌫️ "The veil in front of the eyes when translating the look from the screen
• 💡 Light-fearing (discomfort even in daylight)

⚠️ Attention: Long-term neglect of symptoms can lead to irreversible vision impairment, for example, 8% of users who spend more than 8 hours a day on a smartphone develop computer vision syndrome (CVS) with a decrease in visual acuity by 1-2 diopters per year.

💡

Even with perfect screen settings, limit your continuous use of your smartphone to 40-50 minutes. Take breaks with eye gymnastics (exercises "Eight", "Finger to nose", "Massage eyelids").

FAQ: Frequent questions about eye pain from Xiaomi