Laser eye surgery, is it worth it?

ok, i am turning 20 this month, and my eye sight is pretty bad and i would like to get rid of the nuisance of contact lenses and glasses. I am aware that laser eye surgery will correct my sight, and i can only do the surgery when im 21.
I am not at all concerned about cost, all i am concerned about is the health and safety aspect, so when im 21, and do the surgery (the one with the latest methods and technology) will it get my eyesight to 20/20 perfect vision? are there any long term effects. sight defects??? will the surgery cause any chnages such as ruduction in colour or night sight or anything like that? basically is it worth the risk?
thanks

oh and i have very litrle astigmatism, will the surgery correct this??

It's a matter of weighing risks, and there are risks.
(driving a car is a risk, but most people take it!)
The risks for disastrous problems, such as loss of eyesight or severe scarring are very, very, small indeed.
The most common disappointments are:
Refraction not as near zero as hoped for.
Flare or glare (especially with lights and headlights at night).
Loss of contast sensitivity. (Blacks not black, whites not white)
Dry eye problems.

Having said that, the vast majority of people who have the procedure are very happy.

It's a matter of assessing your chances of being one of the unhappy ones, and possibly being stuck that way.
The second URL is an organisation for such people.

I had laser surgery seven years ago. I had 20/200 in my right eye with heavy astigmatism. It corrected the problem. I have aged since then (I am 51 now) and my vision has deteriorated up close, so I have to wear reading glasses, but they can only correct one vision problem. They cannot fix near sightedness and farsightedness both. So if you have both, fix the one that's worse. It is the best money I have ever spent. I had zero pain, I only had to wear a plastic eye patch at night so I wouldn't accidently rub my eye, and I couldn't get water in my eye for one week, which was easy. I just folder a washcloth several times and held it over that eye. And you would NOT be able to wear ANY makeup for that week. Trust me, the week is over very quickly. But if that bothers you really bad, arrange your surgery date just before you're going to be out of work/school for holidays. That way you don't have to go out without makeup if you don't want to. But it's URGENT that you follow these rules. You could land up blind if you do something stupid. I didn't see halos or anything either. Great results. The day after my surgery, my 20/200 was 20/15. So go for it, but check your facts and be determined to do everything they tell you, down to the letter. It ain't funny going blind for the sake of mascara.

I did some research about the surgery, and a website labeled Dr. Mercola provides some information about the downside to this surgery. I understand that dry eye can be a permanent thing, and issues with vision may take up to six months to correct. I would do a lot of research and thinking about something like this. You only have 2 eyes and you have to think about it.