title: Scheimpflug photographic diagnosis of pellucid marginal degeneration.
abstract: OBJECTIVE
  We present a case of advanced bilateral pellucid marginal degeneration (PMD) with unilateral hydrops to show the unique properties of Scheimpflug imaging and its ability to display the clinical and topographic findings of PMD not seen on traditional placido-based topography.
  
  
  METHODS
  Case report and literature review.
  
  
  RESULTS
  A 51-year-old man was referred with a presumptive diagnosis of bilateral keratoconus with unilateral hydrops. Complete topographic evaluation showed a band of inferior thinning adjacent to the limbus and a Scheimpflug cross-sectional image consistent with PMD.
  
  
  CONCLUSIONS
  We show the value of Scheimpflug-based topography and pachymetry maps to accurately depict the unique disease characteristics of PMD.
authors: Albany Medical College, Albany, NY, USA.
authors: Richard N
authors: RN
authors: Walker
authors: Stephen S
authors: SS
authors: Khachikian
authors: Michael W
authors: MW
authors: Belin
mesh_terms: D003315:Cornea / Q000473:pathology*; D003316:Corneal Diseases / Q000175:diagnosis*; D019781:Corneal Topography; D006801:Humans; D008297:Male; D008875:Middle Aged; D010781:Photography / Q000379:methods*