title: [Correlation of intraocular pressure measured by applanation tonometry, noncontact tonometry and TonoPen with central corneal thickness].
abstract: The purpose of the study was to determine the dependence of intraocular pressure (IOP) measured by Goldmann applanation tonometer (AT), non-contact tonometer (BT) and Tone-Pen (TP) on central corneal thickness (CCT) as well as the respective comparison in relation to the central corneal thickness.
  
  
  METHODS
  CCT and IOP were assessed in 106 eyes of 106 subjects aged 7-77 years (mean 34.3 +/- 17.1 years). IOP was measured with BT, TP and AT. Central corneal thickness was assessed using ultrasound pachymetry. The obtained data were statistically analyzed.
  
  
  RESULTS
  The mean CCT in 106 eyes was 572 +/- 46 microm (range 455-701 microm). A positive correlation between IOP and CCT was found in all types of tonometry. The change in measured IOP for a 100 microm of CCT was 2.0, 2.5 and 5.6 mmHg for TP, AT and BT, respectively.
  
  
  CONCLUSIONS
  IOP measurement by all three methods is affected by CCT. The BT is influenced by CCT significantly more than are AT and TP.
authors.affiliation: Ocní klinika dĕtí a dospĕlých UK2, LF a FN Motol, Praha. marie.ceska-burdova@fnmotol.cz
authors.forename: M Ceská
authors.initials: MC
authors.lastname: Burdová
authors.forename: K
authors.initials: K
authors.lastname: Ferrová
authors.forename: A
authors.initials: A
authors.lastname: Filous
authors.forename: K
authors.initials: K
authors.lastname: Oskorypová
authors.forename: P
authors.initials: P
authors.lastname: Lezatková
authors.forename: P
authors.initials: P
authors.lastname: Sedlácková
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D003315:Cornea / Q000033:anatomy & histology* / Q000473:pathology*; D005260:Female; D006801:Humans; D007429:Intraocular Pressure; D008297:Male; D008875:Middle Aged; D014065:Tonometry, Ocular / Q000379:methods; D055815:Young Adult