Rare Medical News

5 Facts you should know about

Horner’s syndrome



A rare condition characterized by miosis, ptosis, and anhidrosis


Other symptoms which may be seen include the inability to completely close or open the eyelid, facial flushing, headaches, and pain


It is caused by damage to the sympathetic nerves of the face


Heterochromia iridium (i.e., a relative deficiency of pigment in the iris of the affected side of the face) is usually present when the syndrome is congenital or caused by a lesion that has occurred before the age of 1-2 years of age


The syndrome is named after Johann Friedrich Horner, the Swiss ophthalmologist who first described the syndrome in 1869

Rare Medical News