PURPOSE: To evaluate the effect of central corneal thickness (CCT) on the measurement of intraocular pressure (IOP) in normal myopic eyes before and after LASIK refractive surgery. METHODS: To determine CCT (by ultrasonic pachymeter NIDEC) and IOP (by Goldmann tonometer) in 27 patients (48 myopic eyes from -4 to -14 D) before LASIK (on Chiron Technolas 117) and 3 months after LASIK surgery. RESULTS: Mean CCT before LASIK was 543.8 microns (480-612), 3 months after was 430.6 microns (371-511), the difference--113.2 microns (48-157) is highly significant (p < 0.0001). Similar significant is also the decrease of mean IOP 3 months after surgery--about 5.4 mmHg (p < 0.0001). After LASIK surgery decrease IOP is 4.8 mmHg/100 microns. CCT is an important factor for accuracy of the Goldmann measurement. Myopic eyes need more attention, especially after photorefractive surgery, when CCT is decreased and therefore Goldmann IOP measurement is permanently underestimated.

• MeSH
• dospělí MeSH
• laserová modelace rohovky pod rohovkovou lamelou * škodlivé účinky   MeSH
• lidé MeSH
• myopie diagnostické zobrazování   patofyziologie   chirurgie   MeSH
• nitrooční tlak * MeSH
• rohovka diagnostické zobrazování   MeSH
• ultrasonografie MeSH
• Check Tag
• dospělí MeSH
• lidé MeSH
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH