How long is the hospital stay after vitrectomy surgery?

None. Vitrectomies are usually done as outpatient surgery requiring no hospital stay.
Outpatient. Expect it to be done as an outpatient procedure under sedation. You will go home the same day with a patch on the eye, and you will be prescribed drops to help the eye heal. You may experience irritation, but it is usually not painful. Good luck!