Hi Hails,
I have had laser treatment for this, about 6 times over a period of 2 years. There is nothing to worry about, its painless. They put drops into your eye/s and then you follow their instructions, i.e. look to your left, look down etc., while they zap you with the laser. It is all over in a few minutes. I found it helpful to take sunglasses with me as with your pupil dilated the daylight is too bright. Hope this helps
Take care
Chris