When it comes to reading and using devices—whether a smartphone, tablet, computer, or e-reader—the way information appears on your screen matters enormously. Display options are the tools built into most devices that let you control text size, brightness, color, and contrast. Getting these settings right can mean the difference between comfortable use and eye strain.
This guide explains what display adjustments are available, how they work, and which factors help determine what might work best for your situation.
Display options are built-in settings that change how content looks on your screen without changing the content itself. They're separate from the device's actual hardware—they're software controls you can adjust anytime.
Common display settings include:
Most devices today—smartphones, tablets, laptops, and desktop computers—include these options in their accessibility or display settings menus.
Vision changes naturally with age. The lens in your eye becomes less flexible, pupils respond more slowly to light changes, and you may need more light to see clearly. Additionally, conditions like cataracts, macular degeneration, or presbyopia (difficulty focusing on close objects) affect how you perceive digital content.
The right display settings can reduce eye fatigue, headaches, and reading strain—and make devices genuinely usable rather than frustrating.
| Factor | What It Does | Why It Matters |
|---|---|---|
| Text Size | Makes words larger or smaller | Affects readability without requiring glasses change |
| Brightness | Controls screen light output | Too bright causes glare; too dim strains eyes |
| Contrast | Sharpens distinction between text and background | Higher contrast = easier to read for many people |
| Blue Light Filter | Reduces blue wavelengths emitted | May reduce eye fatigue during evening use |
| Color Inversion | Swaps light and dark (dark mode) | Easier for some people in low light; uncomfortable for others |
| Font Weight | Makes text bolder or thinner | Bolder fonts can reduce strain for some readers |
Smartphones and Tablets (iPhone, iPad, Android): Look in Settings > Accessibility or Display. You'll find text size, brightness, contrast, and color filters.
Windows Computers: Go to Settings > Ease of Access > Display, or right-click the desktop to adjust display settings.
Mac Computers: Open System Preferences > Accessibility > Display for contrast and color options.
E-Readers (Kindle, Kobo): Most allow you to adjust font size, line spacing, and background color directly in the reading app or device settings.
The "right" display settings depend on several personal factors:
High contrast + larger text: Many people find this combination most readable. It's especially helpful if you have low vision or astigmatism.
Reduced brightness + blue light filter in evening: Helps some people sleep better and reduces eye strain before bedtime.
Dark mode (inverted colors): Comfortable for some in low light; others find it harder to read. This is highly individual.
Zoom + optimal brightness: Rather than changing text size globally, some people zoom into specific apps or web pages as needed.
Bold fonts + increased letter spacing: Available on some devices, this reduces crowding and makes text clearer.
Experiment in the environment where you'll actually use the device. Settings that work in daylight may not suit evening reading.
Change one setting at a time. Adjust text size first, then brightness, so you know what made the difference.
Check regularly. Your vision and needs may shift; revisit settings seasonally or if you notice new strain.
Look for accessibility menus first. These often contain the most robust display controls, even if you don't think of yourself as needing "accessibility" features—they're tools for everyone.
Take breaks. Display settings help, but so does the 20-20-20 rule: every 20 minutes, look at something 20 feet away for 20 seconds.
If you've adjusted display settings and still experience discomfort, glare, or difficulty reading, consider talking to an optometrist or eye care professional. Sometimes the issue isn't the display—it's an underlying vision change that benefits from new glasses, a different device type, or assessment by someone trained in low-vision aids.
Display options are one of the most underused tools on modern devices. Most are free, always available, and take seconds to adjust. Understanding which settings influence readability—and which ones suit your particular situation—puts genuine control back in your hands.
