Characterization and Comparison of the 10-2 SITA-Standard and Fast Algorithms

Abstract EN

Purpose: To compare the 10-2 SITA-standard and SITA-fast visual field programs in patients with glaucoma.

Methods: We enrolled 26 patients with open angle glaucoma with involvement of at least one paracentral location on 24-2 SITA-standard field test.

Each subject performed 10-2 SITA-standard and SITA-fast tests.

Within 2 months this sequence of tests was repeated.

Results: SITA-fast was 30% shorter than SITA-standard (5.5±1.1 vs 7.9±1.1 minutes, P<0.001).

Mean MD was statistically significantly higher for SITA-standard compared with SITA-fast at first visit (Δ=0.3 dB, P=0.017) but not second visit.

Inter-visit difference in MD or in number of depressed points was not significant for both programs.

Bland-Altman analysis showed that clinically significant variations can exist in individual instances between the 2 programs and between repeat tests with the same program.

Conclusions: The 10-2 SITA-fast algorithm is significantly shorter than SITA-standard.

The two programs have similar long-term variability.

Average same-visit between-program and same-program between-visit sensitivity results were similar for the study population, but clinically significant variability was observed for some individual test pairs.

Group inter- and intra-program test results may be comparable, but in the management of the individual patient field change should be verified by repeat testing.