title: Two cases of keratoconus diagnosed after pregnancy.
abstract: OBJECTIVE
  This case report aims to demonstrate that pregnancy-induced biomechanical corneal changes in combination with risk factors for ectasia can develop into (the exacerbation of) keratoconus.
  
  
  METHODS
  We describe two women who were clinically diagnosed with keratoconus after their second pregnancy. Both women were myopic and had a history of allergies and contact lens wear. It is unclear whether these two women had a newly diagnosed keratoconus that developed during pregnancy or had experienced an exacerbation of an unrecognized, subclinical keratoconus.
  
  
  CONCLUSIONS
  Nowadays, documented progression of keratoconus can be treated by corneal crosslinking to stabilize the weakened cornea. Therefore, it is important to understand the effects of hormonal changes in (keratoconic) eyes during pregnancy and to include topographic imaging in unexplained visual deterioration in young individuals, especially during or after a pregnancy.
authors: Utrecht Cornea Research Group, Department of Ophthalmology, University Medical Center Utrecht, Utrecht, The Netherlands. n.soeters@umcutrecht.nl
authors: Nienke
authors: N
authors: Soeters
authors: Nayyirih G
authors: NG
authors: Tahzib
authors: Laura
authors: L
authors: Bakker
authors: Allegonda
authors: A
authors: Van der Lelij
mesh_terms: D000328:Adult; D001696:Biomechanical Phenomena; D003315:Cornea / Q000473:pathology / Q000503:physiopathology*; D019781:Corneal Topography; D003937:Diagnosis, Differential; D018450:Disease Progression; D005260:Female; D006801:Humans; D007640:Keratoconus / Q000175:diagnosis* / Q000209:etiology / Q000503:physiopathology; D011247:Pregnancy; D011248:Pregnancy Complications; D014792:Visual Acuity