question edit history translations

Who should you expect to show stronger red-eye effect?

blue-eyed people

brown-eyed people

elders

there is no difference

The iris plays no role in the effect, but the blue-eyed people have relatively low melanin in the fundus as well. Therefore, they show a much stronger red-eye effect, as the light passing fundus is not absorbed by melanin. The role of melanin in red-eye effect is nicely demonstrated in case of heterochromia (one eye blue, one brown): typically, only the blue eye displays the effect.

Kantapat Rassamee

8

Michael Miller wikipedia → Red-eye effect

eyeslightphotography

Eyes quiz Light quiz Photography quiz

You will play as

Answers by country

Austria

74%

11%

0%

13%

43

Republic of Ireland

64%

0%

14%

21%

14

Ukraine

62%

8%

1%

26%

56

the United Kingdom

58%

13%

2%

25%

128

Greece

57%

9%

4%

28%

21

Australia

55%

14%

0%

29%

34

the Netherlands

53%

6%

0%

40%

15

Poland

52%

17%

1%

28%

10330

the United States

52%

20%

2%

24%

303

Italy

50%

16%

0%

33%

12

Germany

47%

17%

3%

30%

244

Switzerland

45%

12%

6%

36%

33

Belarus

40%

25%

10%

25%

20

Russia

38%

23%

1%

36%

65

the Philippines

38%

23%

4%

28%

21

Canada

36%

16%

10%

36%

30

Nigeria

33%

41%

16%

8%

12

Egypt

30%

53%

0%

7%

13

Unknown

25%

37%

4%

33%

24

India

20%

37%

10%

28%

173

Which desert has this famous "eye"?

What is the color of eyes of owls that hunt at night?

it doesn't matter, all owls hunt at night

Why do cats have vertical pupils?

to have sharper vision

to better see in the dark

to be more attractive

it is a useless mutation

Why were photographic prints sepia toned?

sepia process was cheaper than black and white

for improved resistance

it is simply ageing of paper

it is the effect of exposition to sunlight