Horner's Syndrome is a rare condition that affects the nerves in the face and eye. It is characterized by a combination of symptoms that occur on one side of the face. The main features of Horner's Syndrome include drooping of the upper eyelid, constriction of the pupil (known as miosis), decreased sweating on the affected side of the face, and sinking of the eyeball into the socket. These symptoms arise due to damage or disruption of the nerve pathway that controls the muscles and functions of the affected side of the face. Horner's Syndrome can be caused by various underlying conditions, such as nerve damage, trauma, tumors, or infections. It can also be present at birth or acquired later in life. Treatment of Horner's Syndrome focuses on addressing the underlying cause and managing the symptoms accordingly. If you suspect you have Horner's Syndrome, it is important to consult a healthcare professional for proper evaluation and guidance.