title: Strabismus surgery distribution during 10-year period in a tertiary hospital.
abstract: BACKGROUND
  There is no large population-based study of the distribution and changing trend of strabismus surgeries in China. This study aimed to investigate the distribution and the changing trend of strabismus surgery in a tertiary hospital of China.
  
  
  METHODS
  A retrospective study of all the strabismus surgeries performed in Beijing Tongren Eye Center from 2003 to 2012 was carried out. Characteristics analyzed included the type of strabismus, age, and gender.
  
  
  RESULTS
  Totally 26 524 strabismus surgeries were performed in Tongren Eye Center during the 10-year period. The number of surgeries increased steadily from 1 507 in 2003 to 3 482 in 2008 and slightly decreased to 3 124 in 2009, but there was a sharp drop to 2 569 in 2010 and then kept relatively steady at 2 760 in 2011 and 2 463 in 2012. Intermittent exotropia (30.3%) was the most common among all kinds of strabismus. The number of strabismus surgeries performed on children under 12 years of age (43.60%) was significantly higher than those of the other age groups (P < 0.05). Unilateral superior oblique paralysis was the most common subtype of paralytic strabismus (8.64%).
  
  
  CONCLUSIONS
  The type distribution of strabismus surgery has changed during the recent decade. The age and type distribution of different strabismus remained basically constant, among which intermittent exotropia was the most common.
authors.affiliation: Beijing Tongren Eye Centre, Research Department, Beijing Tongren Hospital, Capital Medical University; Beijing Ophthalmology and Visual Science Key LabratoryBeijing 100730, China.
authors.forename: Yonghong
authors.initials: Y
authors.lastname: Jiao
authors.affiliation: Beijing Tongren Eye Centre, Beijing Tongren Hospital, Capital Medical University; Beijing Ophthalmology and Visual Science Key Labratory, Beijing 100730, China.
authors.forename: Yunting
authors.initials: Y
authors.lastname: Zhu
authors.affiliation: Institute of Biomedical Engineering, Capital Medical University, Beijing 100054, China.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Zhou
authors.affiliation: Beijing Tongren Eye Centre, Beijing Tongren Hospital, Capital Medical University; Beijing Ophthalmology and Visual Science Key Labratory, Beijing 100730, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Jie
authors.affiliation: Beijing Tongren Eye Centre, Beijing Tongren Hospital, Capital Medical University; Beijing Ophthalmology and Visual Science Key Labratory, Beijing 100730, China.
authors.forename: Jinghui
authors.initials: J
authors.lastname: Wang
authors.affiliation: Beijing Tongren Eye Centre, Beijing Tongren Hospital, Capital Medical University; Beijing Ophthalmology and Visual Science Key Labratory, Beijing 100730, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Lu
authors.affiliation: Beijing Tongren Eye Centre, Beijing Tongren Hospital, Capital Medical University; Beijing Ophthalmology and Visual Science Key Labratory, Beijing 100730, China.
authors.forename: Xiao
authors.initials: X
authors.lastname: Wu
authors.affiliation: Beijing Tongren Eye Centre, Research Department, Beijing Tongren Hospital, Capital Medical University; Beijing Ophthalmology and Visual Science Key Labratory, Beijing 100730, China.
authors.forename: Mengmeng
authors.initials: M
authors.lastname: Kan
authors.affiliation: Beijing Tongren Eye Centre, Beijing Tongren Hospital, Capital Medical University; Beijing Ophthalmology and Visual Science Key Labratory, Beijing 100730, China. Email: zhaogh0303@126.com.
authors.forename: Guohong
authors.initials: G
authors.lastname: Zhao
mesh_terms: D002648:Child; D002675:Child, Preschool; D002681:China; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D009801:Oculomotor Muscles; D012189:Retrospective Studies; D013285:Strabismus / Q000601:surgery*; D062606:Tertiary Care Centers / Q000706:statistics & numerical data