Comparison of different screening methods for the detection of visual field defects in early glaucoma

The effectiveness of three different automated perimetry strategies for the screening of glaucomatous visual field defects was studied on 182 eyes of glaucoma suspects. The results were compared with those obtained with the Octopus G1 program. On this particular sample of population the results are as follows. Henson perimeter: sensitivity 59.4%, specificity 88%. Humphrey perimeter (Armaly full field test): sensitivity 64.2%, specificity 64.2%. Perikon perimeter (Genoa glaucoma screening): sensitivity 55%, specificity 90.4%. Octopus perimeter (G1 program): sensitivity 92.1%, specificity 83%.