title: Post-thyroidectomy iatrogenic Horner's syndrome with heterochromia.
abstract: OBJECTIVE
  To present a case of iatrogenic Horner's syndrome seen together with the heterochromia in the post-thyroidectomy period.
  
  
  METHODS
  A 23-year-old female patient was admitted to our clinic with complaints of low vision in the eye and difference in eye color that developed over the past two years. In the left eye, myosis and minimal ptosis (∼1 mm) was detected, and the color of the iris was lighter than the right eye.
  
  
  RESULTS
  The pre-diagnosis of left iatrogenic Horner's syndrome was finalized after 0.5% topical apraclonidine test.
  
  
  CONCLUSIONS
  Heterochromia can be observed in iatrogenic Horner's syndrome.
authors.affiliation: Department of Ophthalmology, Tarsus State Hospital, Mersin, Turkey.
authors.forename: Mahmut Oğuz
authors.initials: MO
authors.lastname: Ulusoy
authors.affiliation: Department of Ophthalmology, Uludağ University Faculty of Medicine, Bursa, Turkey.
authors.forename: Sertaç Argun
authors.initials: SA
authors.lastname: Kıvanç
authors.affiliation: Department of Ophthalmology, Aksaray State Hospital, Aksaray, Turkey.
authors.forename: Mehmet
authors.initials: M
authors.lastname: Atakan
authors.affiliation: Department of Ophthalmology, Celal Bayar University Faculty of Medicine, Manisa, Turkey.
authors.forename: Hüseyin
authors.initials: H
authors.lastname: Mayalı
keywords: Anisocoria; Heterochromia iridis; Horner's syndrome; Thyroidectomy