Young people, especially university students, are increasingly exposed to digital screens such as smartphones, tablets, and computers for long hours every day. For some, screen use extends across almost all waking hours, meaning the eyes are continuously exposed to artificial light.
Beyond its effects on the brain and concentration, this lifestyle also has important physical consequences, particularly for eye health. One of the most common conditions linked to prolonged screen use is digital eye strain, which can lead to discomfort, dryness, and irritation.
What is Digital Eye Strain?
Health experts, including those at the Cleveland Clinic, describe digital eye strain as a group of vision-related problems caused by prolonged use of computers, smartphones, and other digital devices.
Unlike reading printed text, screen use forces the eyes to work harder. Screen text is often less sharp, and glare or reflections can reduce contrast. This makes the eye muscles strain continuously, especially during long study or work sessions.
How to Relieve Eye Fatigue
Doctors recommend reducing screen exposure, but also following practical strategies to protect the eyes:
1. The 20-20-20 Rule
This is one of the most recommended methods worldwide:
Every 20 minutes, take a break
Look at something 20 feet away
Focus for at least 20 seconds
This simple habit allows the eye muscles to relax and helps reduce symptoms such as headaches, blurred vision, and eye fatigue.
Improving the Study Environment
The American Academy of Ophthalmology highlights several important factors:
Screen position and distance
Keep the screen 50–70 cm away from the eyes
Position the screen slightly below eye level (about 15–20 degrees)
This helps reduce dryness by allowing the eyelids to cover more of the eye surface.
Lighting conditions
Match room lighting with screen brightness
Avoid direct light or glare on the screen
Use screen filters if lighting cannot be controlled
Screen settings
Increase font size for easier reading
Adjust contrast for better visibility
Reduce blue light exposure, especially in the evening
Dry Eye and Reduced Blinking
Studies show that screen use can reduce blinking by up to 50%. Since blinking is essential for spreading tears across the eye surface, this reduction often leads to dryness, burning sensations, and irritation.
In mild cases, artificial tear drops can be used to relieve symptoms and restore moisture to the eyes.
Importance of Regular Eye Checkups
Some individuals may already have undiagnosed vision issues such as mild myopia or astigmatism. Excessive screen use can worsen these conditions without noticeable early symptoms.
Regular eye examinations are therefore essential. In some cases, doctors may recommend specially designed glasses that reduce the strain caused by screen exposure.
Conclusion
While digital devices have become essential tools for learning and communication, managing screen time is no longer optional. It is a key part of maintaining good eye health in the digital age. By following medical recommendations and adopting healthy habits, young people can protect their vision and continue to learn effectively in an increasingly digital world.
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