TY - JOUR
T1 - Influence of corneal biomechanical properties on intraocular pressure differences between an air-puff tonometer and the goldmann applanation tonometer
AU - Tranchina, Laura
AU - Lombardo, Marco
AU - Oddone, Francesco
AU - Serrao, Sebastiano
AU - Lomoriello, Domenico Schiano
AU - Ducoli, Pietro
PY - 2013/6
Y1 - 2013/6
N2 - Purpose: To estimate the influence of corneal properties on intraocular pressure (IOP) differences between an air-puff tonometer (NT530P; Nidek) and the Goldmann applanation tonometer (Haag-Streit). Patients and Methods: The influence of central corneal thickness (CCT), keratometry, and Ocular Response Analyzer (Reichert) measurements of corneal viscoelasticity [corneal hysteresis (CH) and corneal resistance factor (CRF)] on IOP differences between tonometers was evaluated. Results: The CRF was calculated to be the best predictor of the differences in IOP readings between tonometers (r2=0.23; P<0.001), followed by CCT (r2=0.15; P=0.003) and CH (r 2=0.14; P=0.003). Keratometry performed very poorly as lone predictor of IOP differences. In a multiple regression model, CRF, CH, and CCT together accounted for 25% (r2=0.25; P
AB - Purpose: To estimate the influence of corneal properties on intraocular pressure (IOP) differences between an air-puff tonometer (NT530P; Nidek) and the Goldmann applanation tonometer (Haag-Streit). Patients and Methods: The influence of central corneal thickness (CCT), keratometry, and Ocular Response Analyzer (Reichert) measurements of corneal viscoelasticity [corneal hysteresis (CH) and corneal resistance factor (CRF)] on IOP differences between tonometers was evaluated. Results: The CRF was calculated to be the best predictor of the differences in IOP readings between tonometers (r2=0.23; P<0.001), followed by CCT (r2=0.15; P=0.003) and CH (r 2=0.14; P=0.003). Keratometry performed very poorly as lone predictor of IOP differences. In a multiple regression model, CRF, CH, and CCT together accounted for 25% (r2=0.25; P
KW - Applanation tonometry
KW - Corneal biomechanics
KW - Noncontact tonometry
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U2 - 10.1097/IJG.0b013e31824cafc9
DO - 10.1097/IJG.0b013e31824cafc9
M3 - Article
C2 - 22366703
AN - SCOPUS:84879164466
VL - 22
SP - 416
EP - 421
JO - Journal of Glaucoma
JF - Journal of Glaucoma
SN - 1057-0829
IS - 5
ER -