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5 Facts you should know about

Horner’s syndrome

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1

A rare condition characterized by miosis, ptosis, and anhidrosis

2

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

3

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

4

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

5

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

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