Which of the following is the worst for eyesight during a sunny day?

wearing sunglasses with UV filter

wearing sunglasses without UV filter

not wearing sunglasses at all

wearing sunglasses inside buildings

Wearing sunglasses without UV filter causes the pupils to dilate and eyes to absorb more UV rays than they normally would without the sunglasses. Hence, it's much better not to wear sunglasses at all, than to wear ones without UV filter.

Ninjai

Michael Dorausch

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Answers by country

Austria

82%

11%

Pakistan

78%

14%

Germany

66%

27%

113

Italy

64%

28%

Australia

58%

36%

Norway

58%

41%

Canada

56%

28%

Republic of Ireland

53%

36%

the Netherlands

47%

31%

15%

Nigeria

26%

47%

21%

Poland

46%

36%

12%

13460

the Philippines

15%

45%

25%

10%

the United Kingdom

43%

41%

148

Greece

12%

43%

37%

India

13%

35%

33%

15%

216

Egypt

14%

35%

28%

14%

the United States

34%

48%

214

the United Arab Emirates

10%

30%

40%

20%

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blue-eyed people

brown-eyed people

elders

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The speed to let the rocket enter the orbit is ...

vI = 7,91 km/s

vII = 11,19 km/s

vIII = 16,7 km/s

Depends on the weight of the rocket