1. Adjustable suture surgery has become a popular method of strabismus correction in cases in which results are less predictable, such as reoperations, thyroid ophthalmopathy, and blind eyes. 2. Some adjustable strabismus surgery patients experience significant vaso-vagal responses (V-VR) during postoperative adjustment. 3. A positive intraoperative oculocardiac reflex under general anesthesia during strabismus surgery is highly predictive of a postoperative V-VR during planned adjustment.