Correlation of Intraocular Pressure Measured by Applanation Tonometry, Noncontact Tonometry and TonoPen with Central Corneal Thickness
Authors:
M. Česká Burdová; K. Ferrová; A. Filouš; K. Oskorypová; P. Ležatková; P. Sedláčková
Authors place of work:
Oční klinika dětí a dospělých UK 2. LF a FN Motol, Praha
přednostka prof. MUDr. D. Dotřelová, CSc.
Published in the journal:
Čes. a slov. Oftal., 67, 2011, No. 5-6, p. 154-157
Category:
Original Article
Summary
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 Tono-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 μm (range 455–701 μm). A positive correlation between IOP and CCT was found in all types of tonometry. The change in measured IOP for a 100μm of CCT was 2.0, 2.5 and 5.6 mmHg for TP, AT and BT, respectively.
Conclusion:
IOP measurement by all three methods is affected by CCT. The BT is influenced by CCT significantly more than are AT and TP.
Key words:
central corneal thickness, intraocular pressure, Goldmann applanation tonometry, non-contact tonometry, Tono-Pen
Zdroje
1. Bhan, A., Browning, AC., Shah, S. et al.: Effect of corneal thickness on intraocular pressure measurements with the pneumotonometer, Goldmann applanation tonometer, and Tono-Pen, Invest Ophthalmol Vis Sci, 43, 2002; 5: 1389–1392.
2. Broman, A.T., Congdon, N.G., Bandeen-Roche, K. et al.: Influence of corneal structure, corneal responsiveness, and other ocular parameters on tonometric measurement of intraocular pressure, J Glaucoma, 16, 2007; 7: 581–588.
3. Douhgty, M.J., Laiquzzaman, M., Müller et al.: Central Corneal Thickness in European (White) Individuals, Especially Children and the Elderly, and Assessment of its Possible Importance in Clinical Measures of Intra-ocular Pressure, Ophthal Physiol Opt., 22; 2002: 491–504.
4. Doughty, M.J., Zaman, M.L.: Human Corneal Thickness and Its Impact on Intraocular Pressure Measures: A review and Metaanalysis Approach, Survey of Ophthal, 44, 2000: 367–407.
5. Doyle, A., Lachkar,Y.: Comparison of Dynamic Contour Tonometry with Goldmann Applanation Tonometry Over a Wide Range of Central Corneal Thickness, J Glaucoma, 14; 2005: 288-104.
6. Filous, A., Osmera, J., Hlozanek, M. et al.: Central corneal thickness in microphthalmic eyes with or without history of congenital cataract surgery, Eur J Ophthalmol, 21, 2011; 4: 374–378.
7. Filous, A., Osmera, J., Hlozanek, M.: The influence of corneal changes on the measurement of intraocular pressure in pediatric glaucomas, Acta Ophthalmol., 84, 2006; Suppl 238, 44.
8. Filouš A., Ošmera J., Hložánek M.: Význam pachymetrie rohovky dětí, Folia strabol. et neuroophthalmol., IX, 2006, suppl. I: 31–35.
9. Marini, M., Da Pozzo, S., Accardo, A. et al.: Comparing applanation tonometry and rebound tonometry in glaucomatous and ocular hypertensive eyes, Eur J Ophthalmol., 21, 2011; 3: 258–263.
10. Molina, N., Milla, E., Bitrian, E. et al.: Comparison of Goldmann tonometry, pneumotonometry and the effect of the central corneal thickness, Arch Soc Esp Oftalmol., 85, 2010; 10: 325–328.
11. Murase, H., Sawada, A., Mochizuki, K. et al.: Effects of corneal thickness on intraocular pressure measured with three different tonometers, Jpn J Ophthalmol. 53, 2009; 1: 1–6.
12. Ošmera, J., Filouš, A., Hložánek, M.: Centrální tloušťka rohovky, nitrooční tlak a jejich vzájemný vztah u zdravých českých dětí ve věku 7 až 17 let, Čes a slov Oftal., 65, 2009; 1: 19–23.
13. Pakrou, N., Gray, T., Mills, R. et al.: Clinical comparison of the Icare tonometer and Goldmann applanation tonometry, J Glaucoma, 17, 2008; 1: 43–47.
14. Sahin, A., Basmak, H., Yildirim, N.: The influence of central corneal thickness and corneal curvature on intraocular pressure measured by tono-pen and rebound tonometer in children, J Glaucoma, 17, 2008; 1: 57–61.
15. Sahin, A., Niyaz, L., Yildirim, N.: Comparison of the rebound tonometer with the Goldmann applanation tonometer in glaucoma patients, Clin Experiment Ophthalmol., 35, 2007; 4: 335–339.
16. Salvetat, M.L., Zeppieri, M., Tosoni, C. et al.: Comparisons between Pascal dynamic contour tonometry, the TonoPen, and Goldmann applanation tonometry in patients with glaucoma, Acta Ophthalmol Scand., 85, 2007, 3: 272–279.
17. Terminology and guidelines for glaucoma, European Glaucoma society, 2nd edition, Dogma, 2003; Ch 1–4.
18. Terminology and guidelines for glaucoma, European Glaucoma society, 3rd edition, Dogma, 2008; 64.
19. Tonnu, P.A., Ho, T., Newson, T. et al.: The influence of central corneal thickness and age on intraocular pressure measured by pneumotonometry, non-contact tonometry, the Tono-Pen XL, and Goldmann applanation tonometry, Br J Ophthalmol, 89, 2005; 7: 851–854.
20. Yildirim, N., Sahin, A., Basmak, H. et al.: Effect of central corneal thickness and radius of the corneal curvature on intraocular pressure measured with the Tono-Pen and noncontact tonometer in healthy schoolchildren, J Pediatr Ophthalmol Strabismus, 44, 2007; 4: 216–222.
Štítky
OphthalmologyČlánok vyšiel v časopise
Czech and Slovak Ophthalmology
2011 Číslo 5-6
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