Dangers of Blue Light

What is blue light primarily known to boost in humans?

• Sleepiness

• Attention and mood

• Hunger

• Memory

Which of the following is NOT a source of blue light?

• Smartphones

• Flat screen televisions

• Incandescent bulbs

• The sun

What part of the eye is particularly sensitive to blue light?

• Cornea

• Lens

• Retina

• Iris

What is a negative effect of too much exposure to blue light?

• Improved vision

• Digital eye strain

• Increased attention

• Enhanced mood

Tags

CCSS.RI.5.7

CCSS.RI.6.7

CCSS.RL.5.7

CCSS.RL.6.7

CCSS.RL.7.7

Compared to ultraviolet light, how does blue light affect the eyes?

• It has less impact on the eyes.

• It reaches deeper into the eyes.

• It only affects the surface of the eyes.

• It does not cause any damage.

Tags

CCSS.RI.5.7

CCSS.RI.6.7

CCSS.RI.7.7

CCSS.RL.6.7

CCSS.RL.7.7

What hormone does blue light affect that can lead to changes in sleep patterns?

• Adrenaline

• Insulin

• Melatonin

• Estrogen

Which of the following is NOT listed as a possible effect of blue light on the eyes?

• Eye strain

• Vision loss

• Cataracts

• Impaired memory

According to the text, what is one way to decrease the dangers of blue light exposure?

• Increase the use of digital devices before bed

• Wear blue light-blocking glasses

• Avoid wearing any glasses

• Use devices with higher blue light settings

Tags

CCSS.RI.5.3

CCSS.RI.6.3

CCSS.RI.6.5

CCSS.RI.7.3

CCSS.RI.7.5

Exposure to blue light increases the production of which hormone that can make you feel hungry?

• Adrenaline

• Cortisol

• Insulin

• Thyroxine

What is suggested as perhaps the best thing to do to reduce the negative effects of blue light exposure?

• Use more blue light filters

• Cut back on screen time and get outside

• Only use devices during the day

• Sleep with the lights on

Tags

CCSS.RI.5.3

CCSS.RI.6.3

CCSS.RI.6.5

CCSS.RI.7.3

CCSS.RI.7.5