Does Dark Mode Save Your Eyes?

Team Health Cages

is dark mode better for your eyes


We’ve talked about something called ‘dark mode’ in this blog. It’s a feature on phones that makes the background dark and the text light. Some people like it because it can be easier on the eyes, especially at night. But it’s not great for everyone. For some people, it might be harder to see and focus in dark mode. And if you have certain eye problems, the light against the dark background might make things blurry. 

Also, we’re not sure if dark mode helps with things like reducing how much blue light your eyes get or helping you sleep better. If you’re having eye problems like strain, dryness, headaches, trouble seeing, or signs of an infection, it’s important to see a doctor. Whether you use dark mode or not, it’s important to take care of your eyes for your health.

We’ll discuss these topics in this blog:

What is dark mode?

Dark mode is a feature on many smartphones where the screen shows light-colored text and icons against a dark background. Most phones come with light mode by default, where it’s the opposite – dark text on a light background.

You can find dark mode in your phone’s settings, and you can turn it on or off depending on what you like. It changes the look of everything on your phone, including apps.

Interestingly, dark mode used to be the standard before light mode. When computers first came out, they only had monochrome screens. These screens showed dark colors, and when you pressed a key on the keyboard, it made letters and symbols appear in a different color (usually green) against the dark background.

Is dark mode better for your eyes?

While dark mode has its benefits, it might not always be the best for your eyes. It’s easier on the eyes compared to a bright white screen, but it can also make it harder to focus because your pupils dilate in the dark.

When your pupils dilate, your vision becomes less clear. In bright light, like with a white screen, your vision sharpens. Think of it like a camera – a smaller aperture gives clearer focus. So, some people might find it tough to see details on a dark screen.

People with conditions like nearsightedness or astigmatism might notice something called “halation.” It’s like a halo effect where light spreads out and makes things look foggy or blurry. On a dark screen, white letters can seem to blur into the black background, especially if the text is small.

Halation is more common in dark mode, so folks with vision issues might prefer a dimmer light mode or one that filters out blue light. But the most important thing is to see your eye doctor regularly to keep your vision in check. Fixing any eye problems will help you see better on and off the screen.

If you’re getting new glasses, you can ask for special coatings that reduce glare and filter blue light. Just know that not all products claiming to block blue light do the same thing, and the type of blue light from screens can vary.

Studies on the Advantages of Dark Mode

Studies on whether dark mode and other blue light filters help with blue light exposure are unclear. But dark mode might affect your sleep patterns more than eye strain.

One study from 2019 on Apple’s dark mode settings didn’t find much difference in melatonin (a sleep hormone) production between people who used Night Shift before bed and those who didn’t.

The study suggested that just using Night Shift might not be enough to fix your sleep rhythm. Lowering the brightness of your device could be just as important.

Experts also recommend reducing glare and brightness by adjusting your screen settings and using dark or night mode. Some research hints that blue light might affect how quickly you fall asleep. A small study from 2017 showed that using a blue light filter on your device might help you fall asleep faster than playing games right before bed.

But the research on dark mode’s effects isn’t clear yet. Some people say dark mode helps them, though.

Dark mode might help reduce eye strain because it creates more contrast between the text and the background, making it easier to read. This could give your eyes a break from staring at screens for too long.

It might also reduce your exposure to blue light, which can affect your sleep and cause eye strain. But you can also lower your screen’s brightness to get similar results, especially in a dark room.

And while it’s not a health benefit, using dark mode might make your device’s battery last longer, which is handy if you use it a lot.

When should I visit a physician?

If you’re experiencing certain symptoms and home remedies aren’t helping, it’s important to seek medical help.

Here are signs you should see an eye doctor:

  1. Significant eye strain or pain.
  2. Chronic dry eye.
  3. Frequent headaches or migraines that don’t get better with over-the-counter medications.
  4. Obstructions in your vision.
  5. Signs of an eye infection.


In conclusion, taking care of your eyes is crucial for overall well-being. While technologies like dark mode may offer benefits such as reduced eye strain and blue light exposure, it’s essential to consider individual needs and consult with healthcare professionals if you experience persistent symptoms. Whether it’s adjusting screen settings, using protective measures, or seeking medical advice, prioritizing eye health is key to maintaining comfort and clarity in vision.


Q1. Which is better, Dark vs Light Mode? 

A1. Dark mode is good for your eyes in low light and saves battery, while light mode can help you read better and boost creativity.

Q2. Is Dark Mode Good for Low Vision?

A2. Yes, dark mode can help people with low vision by making text easier to read and reducing eye strain.

Q3. Is Light Mode Good for Eyes?

A3. Light mode can be harder on your eyes because of the high contrast, but it’s better for your battery. Also, the lighting in the room matters.

Q4. Is White Mode Good for Eyes?

A4. Dark mode is easier on the eyes than a bright white screen, but it can make it harder to focus.

Q5. Does Dark Mode Save Battery?

A5. Yes, dark mode saves some battery, especially if your screen brightness is high. It can save up to half of your battery power.

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