Don't mess with me, I have contacts... in Off Topic
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Contact lenses, that is!
About a month ago, I suddenly noticed I couldn't read stuff that was far away anymore. I let it go though, thinking I was just tired and/or stressed. When it didn't stop, I made an appointment at the local eye doctor, which I had today.
Turns out that my vision had went from 20/20 to 20/50 in one eye and 20/60 in the other! It seemed like it happened over the course of a day or so, and the doctor said that it's not unlikely that it did. He said it's very common for juveniles to have a loss of vision in the short period of 48 to 72 hours, due to a growth spurt!
Turns out I'm near-sighted. Here's something interesting he told me; people that are near-sighted tend to have an over-developed cerebral cortex, though they're not sure why. Apparently near sighted people tend to be more intelligent than people with normal vision or people who are far sighted.
Another interesting statistic is that the majority of people in prison are far sighted!
Here's something else that everyone should know; the doctor said that you really shouldn't wear those color contact lenses for sight, they're really dangerous. The clear part of the lense in which your pupil is supposed to show is only 5mm big -- to give you an idea, my pupil was 5mm big when he was shining a light at it! He said if I were to wear those at night, where my pupil would enlarge, that my vision would become hazy, and I'd start seeing glares in lights. He said they should be taken off the market.
Hope all of this teaches you something!
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Your remarks (well, the doctor's remarks) about the pupil size in those colored contacts were interesting. I'd think it'd be better to have a larger pupil in those, but maybe the pupils are clear enough that the real eye color shows through and creates an offputting effect. (Me, I don't see much use for the things anyway -- I've known a few women with perfectly attractive brown eyes who looked scary when they went to blue or green eyes -- though if people want to spend their money on something that makes them look worse, more power to 'em.)
Larger pupils are generally more attractive to others, too -- there was an example of this in an old psychology textbook. Two apparently identical pictures side by side, and you had to pick which one looked more likable, or sympathetic, or something. Most people would choose the one where the pupils had been slightly enlarged.