AOTW: Understanding Blue Light: Effects and Implications - After Reading Activity

What is the primary source of blue light?

• LED lights
• Fluorescent bulbs
• The sun
• Incandescent bulbs

How long are the wavelengths of visible light?

• 300 to 600 nanometers
• 380 to 700 nanometers
• 400 to 800 nanometers
• 350 to 750 nanometers

Which part of the eye is NOT effective at blocking blue light?

• Retina
• Cornea
• Lens
• Macula

What is a potential risk of prolonged exposure to blue light from screens?

• Permanent blindness
• Digital eyestrain
• Color blindness
• Increased tear production

Which light wave is known to cause skin and eye damage and is shorter than blue light?

• Infrared
• Ultraviolet (UV)
• Radio waves
• Microwaves

Which of the following is NOT a symptom of digital eyestrain?

• Tired eyes
• Sore eyes
• Improved vision
• Headaches

How does blue light affect sleep cycles?

• Enhances melatonin production
• Delays or disrupts sleep cycles
• Causes insomnia permanently
• Has no effect on sleep

What is the 20/20/20 strategy recommended by the AAO for reducing digital eyestrain?

• Every 20 minutes, look at something 20 feet away for 20 seconds
• Blink 20 times every 20 minutes
• Rest for 20 minutes every 20 hours
• Use 20 eye drops every 20 minutes

Which of the following devices emits a significant amount of blue light?

• Analog televisions
• LED screens
• Incandescent bulbs
• Neon signs

Which condition has no proven link to blue light exposure according to current research?

• Cataracts
• Age-related macular degeneration (AMD)
• Digital eyestrain
• Short-sightedness