Comparability of icare pro rebound tonometer with goldmann applanation and noncontact tonometer in a wide range of intraocular pressure and central corneal thickness
Künye
Tamçelik, N., Atalay, E., Cicik, E. ve Özkök, A. (2015). Comparability of icare pro rebound tonometer with goldmann applanation and noncontact tonometer in a wide range of intraocular pressure and central corneal thickness. Ophthalmic Research, 54(1), 18-25. https://dx.doi.org/10.1159/000381781Özet
Purpose: To evaluate the agreement between the reading values of the Goldmann applanation tonometer (GAT), Icare Pro rebound tonometer (IRT) and noncontact tonometer (NCT) in glaucoma patients. Methods: This cross-sectional study comprised 292 eyes of 292 patients selected from a glaucoma outpatient clinic. The intraocular pressure (IOP) was measured sequentially, at a 10-min interval each, in the following order: NCT, IRT and GAT. The central corneal thickness (CCT) was measured using Pentacam HR before the IOP measurements. Results: The mean IOPs measured by the GAT, NCT and IRT were 20.17 +/- 6.73 mm Hg (range: 4-48), 19.77 +/- 6.88 mm Hg (range: 3-46) and 19.30 +/- 5.15 mm Hg (range: 7.30-44.5), respectively. The correlation coefficients of the GAT and IRT, NCT and IRT, and GAT and NCT measurements were r(2) = 0.673, r(2) = 0.663 and r(2) = 0.938 (all p <0.001), respectively. The IRT tends to overestimate in the low GAT-measuredIOPs, whereas it underestimates in high GAT-measured IOPs. The measurements of all 3 devices were also correlated with the CCT at a statistically significant level (GAT: r(2) = 0.063, NCT: r(2) = 0.063, IRT: r(2) = 0.058). Conclusion: The agreement between the IRT and GAT measurements is higher in the IOP range of 9-22 mm Hg, whereas significant discrepancies occur as the IOP deviates from normal values. The variability of the IRT and GAT measurements over a wide range of CCT is minimal.
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Ophthalmic ResearchCilt
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