Underestimation of intraocular pressure in eyes after laser in situ keratomileusis.
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.
Arimoto
Ako
A
Department of Ophthalmology, Musashino Red Cross Hospital, Musashino, Tokyo, Japan.
Shimizu
Kimiya
K
Shoji
Nobuyuki
N
Enomoto
Kikuko
K
Kohara
Makio
M
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