Write Longer, See Clearer: Reduce Eye Strain with Eye Comfort Mode in Word
Kutools for Word
Bright white Word documents may look clean—but after hours of writing or editing, they can leave your eyes dry, tired, and strained. That’s where Kutools for Word comes in. With its Eye Comfort Mode, you can instantly soften the document background, reduce harsh screen glare, and create a calmer writing environment. It’s a simple change that makes a big difference—especially for late-night work or long writing sessions.
➤ Why You Need Eye Comfort Mode
➤ How to Enable and Use Eye Comfort Mode
➤ Built-in Modes & Custom Theme
➤ Bonus Tips for Comfortable Writing
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Why You Need Eye Comfort Mode
🧿 | Reduce Eye Fatigue The default bright-white page background in Word may look clean, but it can cause significant eye strain during prolonged use — especially under low-light conditions. Eye Comfort Mode replaces it with a softer tone, helping to prevent dryness, discomfort, and visual fatigue throughout your writing sessions. |
🎯 | Improve Focus and Productivity Bright glare and harsh contrast in the interface can be mentally tiring. By softening the overall visual experience, Eye Comfort Mode minimizes distractions and supports a calmer, more focused environment — ideal for editing, writing, or reviewing documents for hours. |
🌙 | Ideal for Night Work or Dark Environments Whether you're burning the midnight oil or working in a dim room, Eye Comfort Mode gently tones down your document's appearance to reduce irritation and avoid overstimulating your eyes. It also helps support your natural circadian rhythm by limiting sudden exposure to intense white light. |
🎨 | Personalize Your Writing Environment In addition to built-in soothing themes, Eye Comfort Mode lets you define up to three custom colors — so you can tailor the document background to your exact visual comfort and aesthetic preference. It’s a simple way to make your workspace feel more “you.” |
How to Enable and Use Eye Comfort Mode
Here’s how to turn on Eye Comfort Mode and choose a theme that suits your eyes:
Step 1: Enable the Eye Comfort Mode
Go to the Kutools tab in the Word ribbon, then click Eye Comfort Mode in the Popular group.
📝 Note: When enabling Eye Comfort Mode for the first time, a confirmation dialog will appear with the following reminders:
- The background color will be saved with the document. It’s recommended to turn off Eye Comfort Mode before sharing.
- If the Print background colors and images option is enabled (under Options → Display), the background color will appear in printed output. This setting is off by default.
You can check Do not remind again within 30 days to skip this prompt in the future. Then click OK to enable the mode, or Cancel to abort the action.

Step 2: Select a Comfort Theme
Once Eye Comfort Mode is enabled, click the ⌄ drop-down arrow next to the Eye Comfort Mode button.
In the menu that appears, select one of the three built-in themes to apply it instantly.
- Brown
- Black
- Green

✅ At this point, the page color of your Word document will change immediately. You're done!
Step 3 (Optional): Customize Your Own Color
If you prefer a personalized theme, follow these steps:
- Click Custom Color 1, 2, or 3, then choose Set Color.
- In the Color dialog, select your preferred color and click OK.
- Click the corresponding Custom Color to apply it.
📝 Note: You can define up to three custom theme colors and switch between them at any time using the Custom Color 1/2/3 buttons.
Result
The page background color in your Word document updates instantly — no restart required.
⚠️ Important Note: If the current document already has a custom page color, Eye Comfort Mode will not be enabled.
Built-in Modes & Custom Theme
Kutools offers three soothing presets and a Custom Theme where you can define up to three personalized background colors. Each card below reflects its actual theme style:
☀️ Brown
Applies a warm-toned brown background to soften glare and reduce eye strain.
Best for: General daytime use
🌑 Black
Uses a dark interface designed for comfortable viewing in low-light spaces.
Best for: Nighttime or dark rooms
💚 Green
Applies a subtle green tint to relax the eyes during extended editing sessions.
Best for: Afternoon or evening sessions
🎨 Custom Theme
Lets you define up to three custom background colors for your preferred viewing style.
Best for: Users with visual preferences or special needs
Bonus Tips for Comfortable Writing
- Enable Focus Mode in Word to hide toolbars and reduce distractions while using Eye Comfort Mode.
- Use Print Layout or Web Layout view to ensure Eye Comfort Mode is fully applied.
- Adjust your Zoom level to a comfortable size that complements your selected background theme.
⚠️ Important Reminder:
Eye Comfort Mode cannot be enabled under the following conditions:
- The current document has a custom page background set via Design > Page Color.
- The document is in a non-editable state (such as read-only or restricted editing).
If either condition is met, Kutools for Word will display a warning message. To enable Eye Comfort Mode, please reset the background color to default and ensure the document is editable.
👉 Experience better clarity and comfort while writing. Try Eye Comfort Mode for free and take care of your eyes.
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- ✏ Contents Editing: Batch Find and Replace / Resize All Pictures
- 🧹 Effortless Clean: Remove Extra Spaces / Remove Section Breaks
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