The “20-20-20 rule” is a simple guideline to help prevent eye strain, particularly from prolonged screen time. It suggests that every 20 minutes, you should look at something 20 feet away for 20 seconds. This practice helps to relax the eye muscles that focus on near objects for extended periods.
What is the 20-20-20 rule?
The 20-20-20 rule is a reminder to take breaks from looking at digital screens. Specifically, it advises:
- Every 20 minutes: Shift your focus away from your screen.
- Look at something 20 feet away: This could be a distant object outside or across the room.
- For at least 20 seconds: Give your eyes a chance to relax and refocus.
Why is it important?
Prolonged screen time can lead to eye strain, also known as Computer Vision Syndrome or Digital Eye Strain. This can cause symptoms like:
Eye fatigue and discomfort, Blurred vision, Dry eyes, and Headaches.
The 20-20-20 rule helps to combat these issues by:
- Relaxing the focusing muscles: The muscles in your eyes that focus on near objects (like your screen) can become fatigued with prolonged use. The 20-20-20 rule gives them a chance to relax and refocus.
- Encouraging blinking: When we focus on screens, we tend to blink less, which can lead to dry eyes. Looking away and blinking more during the 20-second break can help refresh your eyes.
How to implement the 20-20-20 rule:
- Set a reminder: Use a timer, alarm, or an app to remind you to take breaks.
- Make it a habit: Try to incorporate the 20-20-20 rule into your daily routine.
- Find a distant object: Look at something outside, across the room, or at least 20 feet away.
While the 20-20-20 rule is a widely recommended guideline, some studies suggest that its effectiveness may vary. However, it is a simple and easy-to-follow practice that can help alleviate eye strain and discomfort associated with screen time
