[Cnbaapuy]

Wearing sunglasses in some places is considered as 'impolite or inappropriate', many office buildings, banks, special events, etc. require all visitors/attendants to take off sunglasses, it's security issue.

Normally we wear sunglasses when driving, going to beach areas, and as djaidee mentioned it's more like a fashion accessory. Whenever we plan to have a trip, new sunglasses is always on the list to buy.

[JANALA]

I suppose they're a bit more used to the constant sun as well.

[MipRippoomamn]

I have to wear sunglasses, and good ones at that, because I wear contact lenses, which let in a lot more light into my eyes and is not healthy for them.

[Les Allen]

Sunglasses are perceived to be a sign of arrogance I feel. Maybe thats the reason. At least in my part of the world. So, I think Sparky is probably right?

[lXwVlTgO]

I have seen many Thais wearing sunglasses but more like an Fashion Accessoire

[MipRippoomamn]

I think I'd dispute the idea that contacts let more light into your eyes, let alone a lot more. What are the physics for that? If they did, people with contacts would be able to see far better, especially at night, than normal-sighted people!

I'm lazy tonight and don't feel like typing the physiological reasons, so instead I spent 45 seconds to google this.

http://southernfocusvision.com/pdf/sun.pdf

[dr-eavealer]

haha.true!

[MipRippoomamn]

More UV light does go into your eyes when you wear poor quality sunglasses because your pupils widen and let more UV light in, but contact lenses don't suck light into your eyes, they just adjust the focal point of the light that already enters your eye. I mean that's just physics. But yes I have read that people with blue eyes should wear sunglasses because their eyes let in more UV light than brown ones.

Anyway, we're going a bit , hehe.

Where did you read that?