Characterization and comparison of the 10-2 SITA-standard and fast algorithms.
OBJECTIVE
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.
Department of Ophthalmology, Assaf Harofeh Medical Center, Zerifin 73000, Israel.
Yaniv
Y
Barkana
Erez
E
Bakshi
Yakov
Y
Goldich
Yair
Y
Morad
Audrey
A
Kaplan
Isaac
I
Avni
David
D
Zadok
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000465:Algorithms; D005260:Female; D005902:Glaucoma, Open-Angle / Q000175:diagnosis*; D006801:Humans; D008297:Male; D015203:Reproducibility of Results