People push your buttons because they know they can, regardless of whether theyâre aware of it. What theyâre looking for is a negative reaction; they want you damaged and on the defensive, for whatever reason.
Back to Top Causes. Horner syndrome can be caused by any interruption in a set of nerve fibers that start in the part of the brain called the hypothalamus and travel to the face and eyes. Sympathetic nerve fiber injuries can result from: 1  Injury to one of the main arteries to the brain (carotid artery).
Horner syndrome usually affects only one side of the face. Common signs and symptoms include: 1  A persistently small pupil (miosis). 2  A notable difference in pupil size between the two eyes (anisocoria). 3  Little or delayed opening (dilation) of the affected pupil in dim light.