title: Bilateral superior keratoconus: two case reports.
abstract: OBJECTIVE
  To present two cases of the rare entity of bilateral superior keratoconus and to review the literature regarding presentation and clinical findings.
  
  
  METHODS
  Case report based on chart review.
  
  
  RESULTS
  Two patients presented to our corneal service with clinical and topographical features of superior keratoconus.
  
  
  CONCLUSIONS
  The unusual clinical and topographical findings of superior keratoconus are presented and treatment options are considered.
authors.affiliation: Division of Ophthalmology, Groote Schuur Hospital, The University of Cape Town Medical School, Cape Town, South Africa.
authors.forename: G J
authors.initials: GJ
authors.lastname: Rogers
authors.affiliation: Division of Ophthalmology, Groote Schuur Hospital, The University of Cape Town Medical School, Cape Town, South Africa.
authors.forename: M
authors.initials: M
authors.lastname: Attenborough
mesh_terms: D000293:Adolescent; D000328:Adult; D003094:Collagen / Q000378:metabolism; D003261:Contact Lenses; D003315:Cornea / Q000378:metabolism / Q000473:pathology*; D003319:Corneal Stroma / Q000378:metabolism; D019781:Corneal Topography; D003432:Cross-Linking Reagents / Q000627:therapeutic use; D005260:Female; D006801:Humans; D007640:Keratoconus / Q000175:diagnosis* / Q000503:physiopathology / Q000628:therapy; D017319:Photosensitizing Agents / Q000627:therapeutic use; D017755:Prosthesis Fitting; D012030:Refractive Errors / Q000175:diagnosis; D042262:Retinoscopy; D012256:Riboflavin / Q000627:therapeutic use; D066167:Slit Lamp; D014466:Ultraviolet Rays; D014792:Visual Acuity / Q000502:physiology
chemical_list: D003432:Cross-Linking Reagents; D017319:Photosensitizing Agents; D003094:Collagen; D012256:Riboflavin