The key answer of exercise 3

Conversation 1

1. having your eyes done / having laser treatment on your eyes / having your eyes fixed by laser
2. they numb your eyes with eye drops and give a couple of Xanax to keep you calm, and kind of clamp the eyes open ... then they slice a tiny flap in the front of the eye, and you stare at a laser for a few seconds and that reshapes the inside of your eye
3. he doesn’t need further treatment, but he has to go back for aftercare ... basically, however, the next day it was fine

Conversation 2

1. a root canal at the dentist’s
2. they drill a hole in the back of the tooth, clean everything up, then stick some kind of temporary filling in there to prevent bacteria getting in
3. yes, has to go back and have the temporary filling taken out, then they’ll put a more permanent thing in