[Influence of cornea thickness changes after refractive surgery on intraocular pressure measurements].
OBJECTIVE
Assessment of influence of of the cornea thickness decrease on intraocular pressure (IOP) measurements with Goldmann applanation tonometry in patients after refractive surgery procedures (PRK and LASIK).


METHODS
80 eyes in 40 patients (pts) qualified for myopia correction with laser surgery were divided into two groups: in Ist group--20 pts (40 eyes)--PRK procedure was performed and in IInd group--40 eyes (20 pts) LASIK was performed. IOP was measured by Goldmann applanation tonometry. The cornea thickness was assessed in its central region with endothelial microscope with pachymetric facility (Cooper Vision). The eyes were evaluated twice: before and 1 month after the procedure.


RESULTS
In all eyes after laser surgery procedures IOP was lower because of the decrease of central cornea thickness.


CONCLUSIONS
The central cornea thickness is an important factor influencing intraocular pressure measurements with Goldmann applanation tonometry. Refractive surgery procedures leading to the decrease of central cornea thickness result in lower intraocular pressure measurements in applanation tonometry.
Filipecka
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I Katedra i Klinika Okulistyki Slaskiej AM ul. Ceglana 35 40-952 Katowice.
Gierek-Ciaciura
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D000328:Adult; D003315:Cornea / Q000033:anatomy & histology* / Q000601:surgery; D005260:Female; D006801:Humans; D007429:Intraocular Pressure / Q000502:physiology*; D020731:Keratomileusis, Laser In Situ / Q000379:methods*; D008297:Male; D008875:Middle Aged; D011184:Postoperative Period
Zmiana grubości rogówki a pomiar ciśnienia wewnatrzgałkowego po zabiegach chirurgii refrakcyjnej.