title: Corneal Erosion With Pigments Derived From a Cosmetic Contact Lens: A Case Report.
abstract: OBJECTIVE
  To report a case of corneal erosion with pigments derived from a cosmetic contact lens (CCL).
  
  
  METHODS
  A 29-year-old woman complained of foreign body sensation after wearing CCL. Slit-lamp examination of her left eye revealed corneal erosion with yellow pigment at its edges. The surface of the CCLs was examined using the rub-off test and scanning electron microscopy (SEM). An elementary analysis using SEM with energy-dispersive x-ray (SEM-EDX) was also performed.
  
  
  RESULTS
  On the back surface of the CCL, the pigments easily came off during the rub-off test. An SEM examination found exposed pigments with needle-like construction on the back surface. SEM-EDX revealed the presence of carbon, oxygen, iron, titanium, and chlorine in the pigments.
  
  
  CONCLUSIONS
  Direct contact between the bare pigments on a CCL and the corneal surface can cause corneal damage.
authors.affiliation: Department of Ophthalmology and Visual Sciences (T.W., M.U., Y.H.M., T.K.), Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan; Department of Ophthalmology (H.E.), Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan; and Division of Chemistry (S.I.), Institute of Socio-Arts and Sciences, The University of Tokushima, Tokushima, Japan.
authors.forename: Takehito
authors.initials: T
authors.lastname: Watanabe
authors.forename: Masafumi
authors.initials: M
authors.lastname: Uematsu
authors.forename: Yasser Helmy
authors.initials: YH
authors.lastname: Mohamed
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Eguchi
authors.forename: Shoji
authors.initials: S
authors.lastname: Imai
authors.forename: Takashi
authors.initials: T
authors.lastname: Kitaoka
mesh_terms: D000328:Adult; D004396:Coloring Agents / Q000009:adverse effects*; D003261:Contact Lenses / Q000009:adverse effects*; D003315:Cornea / Q000187:drug effects / Q000648:ultrastructure*; D003320:Corneal Ulcer / Q000175:diagnosis / Q000209:etiology*; D003358:Cosmetics / Q000009:adverse effects*; D005260:Female; D006801:Humans; D008855:Microscopy, Electron, Scanning
chemical_list: D004396:Coloring Agents; D003358:Cosmetics