You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Horner’s syndrome involves all except and explain in detail?
Horner’s syndrome is caused by damage to the sympathetic trunk.
The symptoms occur on the same side as the lesion of the sympathetic trunk.
It is characterized by


Miosis (a constricted pupil),
Ptosis (drooping of eyelids due to weakness of superior tarsal muscle which is a part of levator palpebrae superioris)
Apparent enophthalmos (ptosis due to weakness of orbicularis oculi makes it appear that the eyes are sunken in enophtalmos, exophthalmos doesn’t occur in Horner’s syndrome),
Anhidrosis (decreased sweating) and
Loss of cilio-spinal reflex (pinching nape of neck leads to pupillary dilation).