WARNING
This shit can ruin your life if you're not careful. You have to be aware of your low light pupil size because if your pupil is larger than the effective laser area (6.5mm with most lasers, pupils can be up to 9mm in size) you'll get terrible starbursts, halos and light sensitivity at night. This shit can ruin your life at night making it almost impossible to drive and see shit at night.
Another almost guaranteed temporary issue you'll have is dry eyes for up to a year or two. For some the dryness never goes away completely and you might be forced to use eye drops for the rest of your life.
Then there's "floaters", low light condition issues (blurry computer monitor if there's not enough ambient lighting), blurry phone display in dark etc.
I almost had the surgery, but my myopia isn't that bad. I'm aware Americans use a different system for eyesight, but in Europe we use numbers from around -15 to +15 with minus being nearsightedness.
I have fairly mild nearsightedness of -0.5 on left eye and -0.75 on right with 0.5 astigmatism. I can see everything around me and I can drive, but I can't watch tv without squinting from more than 8-10ft away. I can't read small text on the TV without squinting from that distance.
I took the preliminary test and check up and it was determined that my pupils are unusually large (8.6 - 8.8mm.)
The doctors there told me I "could" have some issues at night. It's not "could", you WILL have these issues if your pupils are larger than the operating area of the laser. It's simple physics and refraction. Doctors are often scum and they won't tell you the whole truth.
Research this shit before doing the surgery.
If your eyesight is extremely bad to the point of being basically blind without glasses it might be worth it even with fucked up vision at night. Just keep in mind, starbursts, halos and other night and low light vision problems in general CANNOT be fixed. You're stuck with that shit.
If your pupils are normal (6-7mm), you'll most likely be 100% fine, but there's a 1-2% chance something will go wrong.
This is a huge decision and you have to think about it long and hard. You have to know more about this shit before considering it.
If you don't know your pupil size, eye pressure, cornea thickness, DON'T DO IT. Don't rush. Consult doctors and ask them questions and ask for detailed and honest answers. Do not let them do the operation without knowing your low light pupil size and them explaining everything.