title: Central corneal dellen: a complication of upper eyelid tarsotomy.
abstract: OBJECTIVE
  To report a rare complication of central corneal dellen that developed after a tarsotomy procedure to correct cicatricial entropion.
  
  
  METHODS
  Central corneal dellen developed in a 60-year-old woman 3 months after a tarsotomy procedure for correction of cicatricial upper eyelid entropion. Eversion of the upper eyelid showed a retracted and buckled tarsal plate and the presence of a 5 x 10-mm depression between the edge of the tarsoconjunctival flap and lower tarsal bridge.
  
  
  RESULTS
  The recalcitrant corneal defect was reversed when the upper eyelid tarsoconjunctival surface contour was restored by full-thickness tarsal incisions designed to flatten the dome-shaped tarsal plate.
  
  
  CONCLUSIONS
  An upper eyelid defect producing suboptimal lid-globe apposition during lid closure can lead to dellen formation because of focal corneal dehydration as the result of an altered tear meniscus.
authors.affiliation: Department of Ophthalmology, Queen Mary Hospital, Hong Kong, China.
authors.forename: S K
authors.initials: SK
authors.lastname: Kwok
authors.forename: D T
authors.initials: DT
authors.lastname: Tse
mesh_terms: D019882:Blepharoplasty / Q000009:adverse effects*; D003316:Corneal Diseases / Q000209:etiology* / Q000473:pathology; D004774:Entropion / Q000601:surgery*; D005143:Eyelids / Q000601:surgery*; D005260:Female; D006801:Humans; D008875:Middle Aged; D012086:Reoperation