You'll turn up and get to sit in the nice comfy chairs. The not so nice and comfy chairs are for anyone you bring along with you.

You'll have a brief chat with your Dr and he'll have a look at your eye. They'll also clarify the eye they are operating on by leaving you with a sexy marker pen above it.

Back to comfy chair sitting, a brief chat with the nice person who is going to be ensure you have a nice sleep. He'll check for any allergies.
Then off to get changed into a sexy gown, I was told I could have kept my trousers on but as they had metal in them they had to be removed. I did put my t-shirt back on though as it was a bit nippy.
Up onto the bed and one moment you're asking for a story and the next you'll be waking up and all is done.
If you have a morning appointment you should be able to go home that afternoon to return the next morning. They'll then remove your bandage and check your eye.
It all goes very quickly.
All the best.