Materials and Methods: Seventy-eight primary open-angle and pseudoexfoliation glaucoma follow-up patients were included in the study. Optic disc OCT measurements and VF analysis were obtained on the same day. Garway-Heats maps were made, RNFL sectors matched with pattern deviation 24-2 VF sectors, and absolute defects were counted. Regression analyses were made. Equations were generated between RNFL thickness and absolute defect number. Correlation analyses were performed for the number of absolute defects and the findings.

Results: The regression analysis was significantly linear for defect number and RNFL thickness in sectors 3, 4, and 6 (t values were 0.047, 0.04, and 0.001, respectively, p < 0.05). The analysis was nonlinear in other sectors (t values were 1.66, 0.37, 0.14, 0.88, and 0.36, respectively, for sectors 1, 2, 5, 7, and 8, p > 0.05). The linear and nonlinear equations were generated for these sectors. The correlation between the number of absolute defects of the patient and the number we found by using our formulas in VF Sectors 1,3,4 and 8 there was a strong correlation (r=0.68, r=0.57, r=0.82, and r=0.58 respectively). In VF sectors 3,5,6 and 7 there was a weak correlation (r= 0.22, r= 0.47, r=0.32 and r=0.48 respectively).

Conclusions: We think by using our equations it may be possible to predict the absolute defects of VF of a patient who cannot perform it. But It?s needed to study defects of probability indexes between 5% and1%. Keywords : Glaucoma, visual field tests, optic disc, tomography, optical coherence