Electronic devices can adversely impact eye health through digital eye strain, leading to symptoms such as blurred vision, headaches, and dry eyes, while also potentially interfering with sleep due to blue light exposure. Although they do not cause permanent damage, extended usage can result in temporary discomfort, and some studies indicate possible associations with more serious conditions like myopia progression or age-related macular degeneration (AMD).
Common effects on eye health
- Digital eye strain:
Commonly referred to as computer vision syndrome, this encompasses a range of symptoms arising from extended screen time.
- Symptoms:
Eye fatigue, headaches, blurred vision, dry eyes, neck or shoulder pain, and difficulty focusing.
- Causes:
Factors such as reduced blinking, screen glare, inadequate lighting, improper viewing distance, and poor posture all contribute to eye strain.
- Blue light exposure:
Devices emit blue light, which can interfere with the body’s natural sleep-wake cycle.
- Sleep disruption:
Elevated levels of blue light exposure, particularly at night, can hinder the ability to fall asleep.
- Retinal effects:
Blue light can penetrate the retina, and some research suggests it may cause damage over time or potentially hasten conditions like age-related macular degeneration (AMD).
- Nearsightedness (Myopia):
Increased device usage, especially at close distances, may contribute to or exacerbate nearsightedness.
- Dry eyes:
Individuals often blink less when focused on a screen, resulting in dryness and irritation
How to protect your eyes
- Practice the 20-20-20 rule:
Every 20 minutes, shift your gaze to something 20 feet away for at least 20 seconds to allow your eyes a rest.
- Blink frequently:
Make a deliberate effort to blink more often to maintain eye moisture.
- Adjust your screen:
- Position the screen an arm’s length away and slightly below eye level.
- Use a matte screen filter to reduce glare.
- Increase text size to reduce strain.
- Manage your lighting:
Prevent screen glare and ensure appropriate lighting in your workspace.
- Limit evening screen time:
Decrease screen usage in the two to three hours before bedtime.
- Get regular eye exams:
Make sure to address any vision issues and communicate any concerns with your eye care professional.
