Material and Methods: Sixty-four eyes of 32 POAG patients were enrolled in this prospective study. All patients underwent a full ophthalmological assessment, including measurement of intraocular pressure (IOP), central corneal thickness (CCT), ONH and RNFL thickness parameters measured by OCT and VF parameters measured by Humphrey automated perimetry. OCT and VF measurements were repeated every 8 months up to 24 months.

Results: The mean age of 7 male and 25 female cases in the study group was 51,6±11,6 years. The mean IOP was 21.2±3.7 mmHg and mean CCT was 546,0±33,1 ?m at presentation. There was a signifi cant linear negative correlation between age and RNFL thickness. RNFL thickness ( maximum superior, inferior and mean superior, inferior quadrant) were statistically signifi cant among all follow-up especially fi rst and 24. month examination (p:< 0.001, Pearson Chi-Square test). Signifi cant differences were detected in mean deviation (MD) and pattern standard deviation between fi rst and 24th months examinations (p< 0.001, Pearson Chi-Square test). There was a signifi cant negative correlation between mean deviation and RNFL thickness (mean superior, maximum superior and inferior quadrant ).

Conclusion: Correlation was identifi ed between OCT RNFL thicknesses and VF parameters. These tests should be used in conjunction for the diagnosis and follow-up of POAG. Keywords : Intraocular pressure, optical coherence tomography, visual fi eld