Also, does wearing glasses cause vision lasikrsen?

The simple answer, is yes, your vision can get worse after Lasik. This is why it is a good idea to ensure that you have stopped growing, or more so that your eyes have stopped growing before you have the surgery. In the US, the FDA regulates Lasik to patients over the age of 18. Wait till your vision has stabilized for at least 2 years before getting the surgery.

as for your question on if wearing glasses causes your vision to worsen, there is no clear cut answer. many will argue yes, while other will argue no. Glasses do not do anything to change the shape of your eye, but some would argue that staring at things too closely with glasses on can cause your vision to worsen.

LASIK Refractive Surgery The Day of the Procedure