In today’s digital age, prolonged screen time has become a norm, leading to a surge in cases of digital eye strain, also known as computer vision syndrome (CVS). Symptoms such as eye discomfort, blurred vision, headaches, and neck pain are increasingly common among individuals who spend extended hours in front of screens. To mitigate these issues, optometrists recommend the 20-20-20 rule—a simple yet effective strategy to protect your eyes.

Understanding the 20-20-20 Rule
The 20-20-20 rule is a straightforward guideline designed to alleviate digital eye strain:
- Every 20 minutes: Take a break from your screen.
- Look at something 20 feet away: Shift your focus to a distant object.
- For at least 20 seconds: Allow your eyes to relax and refocus.
This practice helps relax the focusing muscles of the eyes, reduces fatigue, and encourages blinking, which is essential for maintaining eye moisture and comfort.
Scientific Backing and Benefits
Research supports the efficacy of the 20-20-20 rule in reducing symptoms of digital eye strain. A study published in 2023 found that participants who adhered to the 20-20-20 rule experienced significant improvements in eye comfort and a reduction in dryness and irritation over a two-week period Healthline.
Additionally, the rule may play a role in slowing the progression of myopia (nearsightedness), particularly in children. By regularly shifting focus from near to distant objects, the eyes’ focusing system is engaged in a balanced manner, potentially reducing the risk of myopia development.
Implementing the 20-20-20 Rule
Incorporating the 20-20-20 rule into your daily routine is simple:
Set a timer
Use your phone or computer to remind you every 20 minutes to take a break.
Look around
Find an object at least 20 feet away to focus on during your break.
Blink often
Ensure you blink regularly to keep your eyes moist.
For those who find it challenging to remember, various apps are available that can prompt you to take breaks and follow the 20-20-20 guideline.
Additional Tips for Eye Health
Beyond the 20-20-20 rule, consider the following practices to further protect your eyes:
- Maintain proper screen distance: Position your screen about an arm’s length away and ensure it’s at eye level.
- Adjust lighting: Reduce glare by using appropriate lighting and screen filters.
- Use artificial tears: Over-the-counter lubricating eye drops can help alleviate dryness.
- Wear computer glasses: Specialised eyewear can reduce glare and improve contrast.
- Stay hydrated: Drink plenty of water to maintain overall eye health.

Incorporating the 20-20-20 rule into your daily routine is a simple yet effective way to combat digital eye strain and promote long-term eye health.
Regular eye examinations are also crucial in detecting and addressing potential issues early.
If you experience persistent symptoms or have concerns about your eye health, consult with Kobus Siemens Optometrist Oogkundige.
For personaliSed advice and comprehensive eye care services, visit Kobus Siemens Optometrist Oogkundige at 30 Heystek Street, Rustenburg.


