title: Intraocular lens calculation in a patient with previous penetrating keratoplasty and LASIK.
abstract: OBJECTIVE
  To report a case of a patient who underwent cataract extraction with intraocular lens (IOL) implantation after previous penetrating keratoplasty (PK) followed by laser in situ keratomileusis (LASIK).
  
  
  METHODS
  Case report and literature review of cataract surgery after PK and LASIK. Cataract surgery was successfully performed in a patient with previous PK and LASIK. This paper outlines our method of calculating the correct power IOL for implant.
  
  
  RESULTS
  The patient's 1-month postoperative uncorrected visual acuity was 20/70 and best spectacle-corrected visual acuity was 20/30+ with -0.75 +0.50 x 180.
  
  
  CONCLUSIONS
  We report the case of a patient with cataract extraction with IOL implantation after PK and LASIK as well as a description of the method used to calculate IOL power after PK and LASIK. While the IOL selection can be difficult, using the appropriate nomogram can result in good visual outcomes.
authors.affiliation: Department of Ophthalmology, University of California, Davis, School of Medicine, Sacramento, 95817, USA.
authors.forename: Sean D
authors.initials: SD
authors.lastname: Adrean
authors.forename: Charles
authors.initials: C
authors.lastname: Reilly
authors.forename: Mark J
authors.initials: MJ
authors.lastname: Mannis
mesh_terms: D000465:Algorithms; D002387:Cataract Extraction; D006801:Humans; D020731:Keratomileusis, Laser In Situ; D015948:Keratoplasty, Penetrating; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D049451:Nomograms; D055095:Optics and Photonics; D014792:Visual Acuity