title: Entropion-ectropion: the influence of axial globe projection on lower eyelid malposition.
abstract: OBJECTIVE
  To evaluate the effect of axial globe projection on lower eyelid malposition with aging.
  
  
  METHODS
  Consecutive patients presenting to 2 oculoplastic surgeons with lower eyelid and tarsal involutional ectropion or entropion underwent axial globe projection measurements with a Hertel exophthalmometer.
  
  
  RESULTS
  Data on 36 eyelids of 31 white patients were collected. Axial globe projection in the ectropion group, mu = 19.9, was significantly greater than in the entropion group, mu = 16.1 (p = 0.000021). This held true even when the analysis was confined to the subgroup of male patients.
  
  
  CONCLUSIONS
  Tarsal ectropion directly correlates with more prominent axial globe position, and patients with relatively enophthalmic eyes tend to develop entropion.
authors.affiliation: Department of Ophthalmology, Brown University, Providence, Rhode Island 02903, USA. heimmel@yahoo.com
authors.forename: Mark R
authors.initials: MR
authors.lastname: Heimmel
authors.forename: Yoash R
authors.initials: YR
authors.lastname: Enzer
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Hofmann
mesh_terms: D004483:Ectropion / Q000503:physiopathology*; D004774:Entropion / Q000503:physiopathology*; D005143:Eyelids / Q000002:abnormalities*; D005260:Female; D006801:Humans; D008297:Male; D009915:Orbit / Q000503:physiopathology*