In today’s digital world, most of us spend hours staring at screens. Whether it’s working on a laptop, scrolling through our phones, or watching TV, screen time has become a major part of our daily lives.
But have you ever noticed your eyes feeling tired, dry, or strained after a long day of using screens? If yes, you might be experiencing Computer Vision Syndrome (CVS).
In this article, we’ll break down what CVS is, its causes, symptoms, and—most importantly—how you can prevent it.
What is Computer Vision Syndrome
Computer Vision Syndrome, also known as digital eye strain, is a group of eye and vision-related problems that result from prolonged screen use. It occurs when your eyes are overworked due to excessive exposure to digital screens like computers, tablets, and smartphones.
The main reason for CVS is that our eyes have to constantly adjust and refocus while looking at screens. Unlike printed text, which has clear and stable edges, digital screens have pixelated characters, making our eyes work harder to maintain focus.
Additionally, blinking plays a big role in keeping our eyes moist and comfortable. However, when we stare at screens, our blink rate drops by 50%, leading to dry and irritated eyes.
Common Symptoms of Computer Vision Syndrome
If you spend long hours on digital devices, you may notice the following symptoms:
✅ Eye Strain – A feeling of discomfort or fatigue in the eyes.
✅ Blurry Vision – Difficulty focusing after prolonged screen use.
✅ Dry Eyes – Redness, irritation, or a burning sensation in the eyes.
✅ Headaches – Eye strain can trigger frequent headaches.
✅ Neck & Shoulder Pain – Poor posture while using screens can cause muscle tension.
✅ Light Sensitivity – Increased discomfort under bright lights.
These symptoms often worsen the longer you use digital devices, but they can be relieved with proper eye care and lifestyle adjustments.
Causes of Computer Vision Syndrome
Several factors contribute to CVS, including: 📌 Prolonged Screen Time – Spending long hours on devices without breaks. 📌 Reduced Blinking – Less blinking leads to dry and irritated eyes. 📌 Glare & Blue Light Exposure – Bright screens and harsh lighting strain the eyes. 📌 Improper Screen Distance – Sitting too close or too far from the screen. 📌 Poor Posture – Hunching over screens leads to neck and shoulder strain. 📌 Uncorrected Vision Problems – Undiagnosed myopia, astigmatism, or presbyopia can worsen symptoms.
How to Prevent Computer Vision Syndrome
Prolonged screen time can lead to insomnia, characterized by difficulty falling asleep or staying asleep. This is especially prevalent in individuals who use screens in the hours leading up to bedtime.
1. Follow the 20-20-20 Rule
🔹 Every 20 minutes, look away from your screen and focus on something 20 feet away for 20 seconds.
🔹 This relaxes the eye muscles and reduces strain.
2. Blink More Often
🔹 Make a conscious effort to blink frequently while using screens.
🔹 If your eyes feel dry, use artificial tears to keep them lubricated.
3. Adjust Your Screen Settings
✅ Brightness – Match screen brightness to your surroundings.
✅ Contrast – Adjust text contrast for better readability.
✅ Font Size – Increase font size to reduce eye strain.
4. Reduce Glare & Blue Light Exposure
🔹 Use anti-glare screen protectors or position your screen to avoid reflections.
🔹 Enable blue light filters on your devices or wear blue light-blocking glasses.
5. Maintain Proper Screen Distance & Posture
✅ Keep your screen at least an arm’s length (about 50-70cm) away from your eyes.
✅ Position the screen slightly below eye level to reduce neck strain.
✅ Sit with proper back support to avoid posture-related discomfort.
6. Take Frequent Breaks
🔹 Avoid using screens for long, uninterrupted hours.
🔹 Take 5-10 minute breaks every hour to rest your eyes and stretch your muscles.
7. Get Regular Eye Exams
🔹 An eye check-up can detect underlying vision problems that contribute to CVS.
🔹 Your optometrist can prescribe computer glasses if needed.
Final Thoughts
With digital screens becoming a daily necessity, protecting your eyes from Computer Vision Syndrome is more important than ever.
Simple habits like blinking more, taking breaks, adjusting screen settings, and maintaining good posture can make a big difference in reducing eye strain.
Your eyes work hard for you—take care of them! Book an eye check-up today to ensure your vision stays healthy!
United Optometrist @ Square 2 (Novena MRT🚇)
⏰ Mon-Sun 11.30am – 8pm
📲 WhatsApp: wa.me/+6598251377
📞 63976885
United Eyecare @ Boon Keng MRT🚇
⏰ Mon-Sun 10.30am – 7.30pm
📲 WhatsApp: wa.me/+6588070495 📞 62978298
