Pattern deviation plots of the Humphrey Field Analyzer (HFA) 24–2 test and the HFA 10–2 test, and the corrected probability plot of the Octopus G1 program of the same early glaucoma eye from the study.

<p>The pattern deviation plot of the HFA 24–2 test shows no depressed test point within the central 10° area (the area surrounded by the cross shape line) but the sensitivity is reduced in the more peripheral area of the visual field. The pattern deviation plot of the HFA 10–2 test shows a cluster of depressed test point locations. The peripheral retinal sensitivity is not tested. The corrected probability plot of the Octopus G1 program shows a cluster of reduced sensitivity both in the central 10° area (the region within the inner black circle) and in the periphery.</p

Demographic data of study population.

<p>Demographic data of study population.</p

Visual field results with the HFA 24–2 and HFA 10–2 test and the Octopus G1 program.

<p>Visual field results with the HFA 24–2 and HFA 10–2 test and the Octopus G1 program.</p

Agreement of the classification of the central 10-degree visual field between the HFA 10–2 test and the Octopus G1 test.

<p>Agreement of the classification of the central 10-degree visual field between the HFA 10–2 test and the Octopus G1 test.</p

Central 10 degrees of the visual field with the locations of HFA 24–2, HFA 10–2 and Octopus G1 plotted in the same grid.

<p>The inner circle delimits the central 10 degrees area with test locations of the three tests (HFA 24–2, HFA 10–2 and Octopus G1) marked with different symbols. Cross = HFA 24–2; square = HFA 10–2; triangle = Octopus G1.</p