How does laser eye surgery repair the eye?

Question: How does laser eye surgery repair the eye?
- Keywords:
  eye,
  laser,
  repair,
  surgery
Asked by Deirdre to Saoirse on 17 Nov 2016.
- Saoirse McCrann answered on 17 Nov 2016:
  
  When you are shortsighted the eye is too long or else too powerful. Laser surgery takes off layers of your cornea (front of the eye). That makes the eye less powerful. Images are then focused properly at the back of the eye

Question: How does laser eye surgery repair the eye?