@rundocuri- I had ptosis surgery several years ago, and the side effects following surgery are really not too bad. Your mom should expect to have swelling and some mild pain, but both are easy to handle.
I used a bag of frozen peas on my eyes after surgery because they provided a cool yet soft way to reduce swelling. Since I was not allowed to take certain pain relievers like aspirin because they can cause bleeding, I took acetaminophen for pain. These are really the only remedies your mom will need to begin feeling better. It is also very important that she finishes any medications her doctor prescribes, and gets plenty of rest for the first week to 10 days following her procedure.