If you read on a phone, tablet, or e-reader, you’ve probably had the same experience: the first few minutes feel fine, then your eyes start working harder. Words feel “tight” on the page. You reread lines. Your eyes get dry. Sometimes you end up with a dull headache that has nothing to do with the content you’re reading.
The good news is that comfort often improves with small setting changes. And the most effective one is also the simplest: bigger text.
If you’ve ever wondered why, Hakim Optical’s guide on digital eye strain explains how long, uninterrupted screen time can lead to tired eyes, blur, and headaches, especially when your setup makes your eyes work harder than necessary.
Why bigger text wins for almost everyone
Bigger text reduces the “effort per sentence.” When text is small, you tend to bring the screen closer or squint slightly. That increases focusing demand and often reduces blinking, which can make eyes feel dry and irritated faster.
Bigger text also improves tracking. Your eyes make fewer “corrective” movements when the letters are easy to resolve quickly, which can make reading feel smoother and less fatiguing, especially at the end of the day.
If you have been relying on blue-light settings alone, it helps to reset expectations. Hakim Optical’s 6 Eye Care Myths & Mistakes You’re Making points out that screen filters and specialty eyewear are not a complete solution if the underlying habits and viewing setup are still straining your eyes.
Start with font size and viewing distance
A comfortable reading distance matters as much as the text itself. For many people, a phone gets closer and closer without them noticing. Increasing font size gives you permission to hold the screen farther away and still read effortlessly.
A practical approach is to bump the font size until you can read without leaning in, then adjust brightness to match your room. This one-two change often reduces squinting, improves posture, and makes longer sessions feel manageable.
If you want a simple way to think about comfort, it can help to compare your screen to a printed book: readable without effort, at a natural distance, in lighting that doesn’t force you to fight glare.
Line spacing and layout can reduce “visual crowding”
Line spacing is an underrated setting for tired eyes. When lines are too tight, your eyes have to work harder to land on the next line accurately, particularly on small screens. Increasing line spacing slightly can reduce that “crammed” feeling and make it easier to keep your place.
If your reading app lets you adjust margins or column width, use it. Long lines of text are harder to track, while slightly narrower columns can feel calmer and faster to read. It’s the same reason many people prefer articles with clean spacing over a dense wall of text.
Contrast and themes: choose what feels clear, not what’s trendy
High contrast is not automatically better. Some people love black text on a white background for daytime reading because it feels crisp. Others find it harsh in dim lighting and prefer softer themes.
Dark mode can feel comfortable at night because it reduces the sense of a bright rectangle in a dark room. But it can also make text look less sharp for some readers, especially with small fonts. If dark mode makes letters look “glowy” or fuzzy, switch back to a light theme and reduce brightness instead.
The key test is clarity. If you notice yourself rereading, blinking hard, or feeling tense around the eyes, your theme and contrast may not be the right match for your environment.
Warm mode is useful, but brightness still matters most
Warm modes and “night shift” settings can make screens feel gentler, especially in the evening. They can reduce the blue-white harshness that some people find uncomfortable. But they won’t solve eye fatigue if the screen is still too bright for the room or the text is still too small.
Try this combination at night: slightly warmer colour temperature, larger font, and brightness lowered to match the ambient light. If you’re reading in bed, consider adding a small bedside lamp so your eyes are not going from a bright screen to total darkness.
Glare and reflections: the comfort problem people overlook
Sometimes it’s not the text at all. It’s glare. Overhead lights, glossy screens, and reflections can force your eyes to constantly “compete” with bright spots.
If glare is a common issue for you, it’s worth learning about lens options that reduce reflections. Hakim Optical explains how lens coatings can help reduce distracting glare and make focusing on screens feel easier.
Breaks are a reading setting too
Even perfect settings won’t help if you read for 45 minutes straight without looking up. Your focusing system needs quick resets.
A simple guideline is the 20-20-20 rule: every 20 minutes, look at something at least 20 feet away for 20 seconds. The Canadian Association of Optometrists explains it clearly in their 20-20-20 rule guide.
If you pair breaks with a conscious blink or two, many people notice less dryness and fewer end-of-day headaches.
When settings are dialed in but reading is still uncomfortable
If you’ve adjusted font size, spacing, brightness, and breaks, and you still struggle with blur, headaches, or fatigue, it may be time for a prescription check or a conversation about screen-friendly lens options. Even small prescription changes can make near work feel noticeably easier.
And if you’ve been meaning to update your glasses anyway, this is a good time to do it. Hakim Optical’s Spring Sale includes two pairs of glasses from only $99, which makes it easy to set up one pair for everyday wear and another pair for dedicated reading or screen time, without overthinking it.
FAQs
What reading setting helps eye comfort the most?
For most people, increasing font size has the biggest impact because it reduces squinting and lets you hold the screen at a more comfortable distance.
Is dark mode better for your eyes?
It depends. Dark mode can feel more comfortable in dim rooms, but some people find it reduces text sharpness. Choose the theme that feels clearest and least tiring.
How do I stop my eyes from feeling dry when I read on screens?
Bigger text, good lighting, and frequent breaks help. Many people also blink less while reading on screens, so pairing breaks with a few full blinks can improve comfort.
When should I book an eye exam for reading discomfort?
If you’re getting frequent headaches, blur that comes and goes, or fatigue that doesn’t improve with better settings and breaks, it’s worth booking an eye exam to rule out prescription or focusing issues.