title: Underestimation of intraocular pressure in eyes after laser in situ keratomileusis.
abstract: OBJECTIVE
  Retrospectively, we reviewed the records of 65 patients (115 eyes) regarding the intraocular pressure (IOP) after laser in situ keratomileusis (LASIK).
  
  
  METHODS
  The mean patient age was 31.2 +/- 10.5 years. The average preoperative spherical equivalent was -6.85 +/- 2.54 diopters. A noncontact pneumatic tonometer and a Goldmann applanation tonometer were used in measuring the IOP.
  
  
  RESULTS
  The IOP after LASIK was significantly lower than that before surgery (Mann-Whitney U-test). The IOP correlated significantly with the corrected diopter value, corneal thickness, and corneal curvature (Spearman rank correlation).
  
  
  CONCLUSIONS
  The postoperative IOP can be underestimated due to decreased corneal thickness and curvature. When evaluating IOP after LASIK surgery, this possibility should be carefully investigated.
authors.affiliation: Department of Ophthalmology, Musashino Red Cross Hospital, Musashino, Tokyo, Japan.
authors.forename: Ako
authors.initials: A
authors.lastname: Arimoto
authors.forename: Kimiya
authors.initials: K
authors.lastname: Shimizu
authors.forename: Nobuyuki
authors.initials: N
authors.lastname: Shoji
authors.forename: Kikuko
authors.initials: K
authors.lastname: Enomoto
authors.forename: Makio
authors.initials: M
authors.lastname: Kohara
mesh_terms: D000328:Adult; D003315:Cornea / Q000601:surgery*; D003951:Diagnostic Errors; D005260:Female; D006801:Humans; D007429:Intraocular Pressure; D020731:Keratomileusis, Laser In Situ; D008297:Male; D009216:Myopia / Q000601:surgery*; D011184:Postoperative Period; D012189:Retrospective Studies; D014065:Tonometry, Ocular