WONDER #390: Where Do Red Eyes Come From?

Question 1 of 3

The red eye effect is caused by light reflecting off of what part in the back of the eye?

  1. retina
  2. pupil
  3. lens
  4. cornea

Question 2 of 3

The red eye effect tends to be stronger in people with what color eyes?

  1. brown
  2. hazel
  3. blue
  4. red

Question 3 of 3

Pets have a reflective layer at the back of their eyes called what?

  1. tapeworm
  2. tapetum
  3. tears
  4. mirror

Check your answers online at https://www.wonderopolis.org/wonder/where-do-red-eyes-come-from.