Comparison of Pentacam with Goldmann applanation tonometry in measurement of different central corneal thickness

Objective To compare the value between Pentacam system and Goldmann applanation tonometry(GAT)in measurement of different central corneal thickness(CCT).Methods According to CCT, 69 patients (69 eyes)were divided into three groups:normal group (520～ 0.05). There was no significant positive correlation between IOP measured using GAT and the CCT (P>0.05).In thin group, a significant change existed between GAT and corrected IOP (P<0.05).There was a significant positive correlation between IOP measured using GAT and the CCT(IOP=0.067×CCT-16.582, r2=0.730, P<0.05), al-so a significant correlation between CCT and corrected IOP calculated using the models of Shah(IOP=0.076×CCT-25.349,r2=0.328, P<0.05).Conclusion A correction of IOP readings by considering CCT with Penta-cam system might be helpful for determining an accurate IOP value.In eyes with thin cornea, corrected IOP cal-culated using the models of Dresden may give a more accurate assessment than that of GAT.It is helpful to ear-ly diagnosis and treatment for patients inclinic. Key words: Pentacam system;  Scbeimpflug images;  Central corneal thickness;  Intmocular pressure