It's very possible to go blind from having laser eye surgery but it's very rare and your chance of going blind from laser eye surgery is very low.
The laser eye surgery or Lasik Eye surgery is pretty safe and you will usually have no complications from the laser eye surgery.
I had laser eye surgery and I was worried about it too but the laser eye surgery was really successful and I can see much better now.
I would highly recommend having laser eye surgery done because you will likely come out better with better eyesight than when you went it.
No one has gone blind as of yet from the laser eye surgery but it is possible but unlikely.