Patients with POAG and OHT were recruited, and VF analysis with 24-2 and or 10-2 was done using SITA standard strategy in Zeiss Humphrey Visual Field Analyzer (HFA). 
Zeiss Humphrey Visual Field Analyzer (HFA)
All the previous VFs were identified from FORUM software, and the baseline indices were recorded from the first reliable VF analysis.  The present VF analysis was compared to the previous one using FORUM software, and the rate of progression (ROP) in VF was obtained by Guided Progression Analysis.



FORUM software