I had a Golden mix who had surgery for entropian. This was about 20 years ago & the vet did one eye at a time because it had to be stitched closed, poor dog! I understand it's a simpler procedure now, & they don't have to stitch the eye shut.
Anyhow, I don't recall any trauma and she recovered just fine, never had further problems.
Cooper The WonderDog
Daphne The Destructo-Rott