Computer Vision Syndrome (CVS) Flashcards
(20 cards)
known as Digital Eye Strain, refers to a group of eye and vision-related problems that result from prolonged use of digital screens—such as computers, tablets, e-readers, and smartphones.
Computer Vision Syndrome
Primary Causes
Screen Time
Blue Light
Viewing Issues
Glare
Ergonomics
Vision Problems
Screen Flicker
Reduced blinking leads to dry eyes
Screen Time:
Potential retinal stress from HEV light
Blue Light:
Improper distance/angle strains eyes
Viewing Issues:
Reflections increase visual discomfort
Glare:
Poor setup causes eye and body strain
Ergonomics:
Uncorrected errors worsen symptoms
Vision Problems:
Low refresh rates cause fatigue
Screen Flicker:
Signs and Symptoms
Ocular Symptoms
Non-Ocular Symptoms
Ocular Symptoms
*Eye strain/fatigue
*Dryness or irritation
*Blurred/double vision
*Redness
Non-Ocular Symptoms
*Neck/shoulder pain
*Tension headaches
*General fatigue
Actionable Strategies
20-20-20 Rule
Ergonomics
Lighting
Blinking
Display
Eyewear
Breaks
Look 20 feet away every 20 minutes for 20 seconds
20-20-20 Rule:
Monitor 20-30 inches away, top at eye level
Ergonomics:
Use anti-glare filters, balance brightness
Lighting:
Maintain tear film with frequent blinks
Blinking:
Larger text, high contrast, ≥75 Hz refresh
Display:
Anti-reflective or blue light-filtering lenses
Eyewear:
Rest eyes and stretch regularly
Breaks:
