Table 4.

Descriptive measures of the global indices mean deviation (MD), pattern standard deviation (PSD) and visual field index (VFI) by severity stage for each consolidated staging (CS) system. (AGIS=Advanced Glaucoma Intervention Study scoring system; GSS=Glaucoma Severity Staging system; eGSS=Enhanced Glaucoma Severity Staging system; sd = standard deviation)

			CS1	CS2	CS3	CS4
MD	AGIS CS	mean±sd	−0.5±1.2	−3.2±1.6	−8.4±2.8	−19.7±6.0
		median	−0.5	−3.2	−7.7	−17.8
		range	−4.6 – 2.8	−8.6 – 1.4	−15.5 – −2.8	−30.8 – 9.7
	GSS CS	mean±sd	−0.4±1.3	−2.1±2.1	−5.6±3.9	−16.1±8.8
		median	−0.2	−1.7	−4.6	−15.8
		range	−5.2 – 2.8	−11.1 – 2.1	−19 – 0.9	−30.8 – −2.0
	eGSS CS	mean±sd	−0.4±1.1	−2.9±0.8	−5.2±1.7	−16.2±6.5
		median	−0.4	−3.0	−5.0	−14.9
		range	−2.8 – 2.8	−4.9 – 0.5	−11.0 – −1.0	−30.8 – −6.7
PSD	AGIS CS	mean±sd	1.7±0.5	3.5±1.6	8.9±3.2	11.1±2.5
		median	1.6	3.0	8.6	11.7
		range	0.9 – 5.1	1.1 – 12.3	3.1 – 17.0	3.9 – 15.0
	GSS CS	mean±sd	1.5±0.2	2.8±1.8	6.1±3.4	9.8±3.5
		median	1.4	2.2	4.8	10.5
		range	0.9 – 2.0	1.4 – 13.6	1.8 – 17.0	3.5 – 16.1
	eGSS CS	mean±sd	1.7±0.4	2.7±0.8	5.5±2.1	11.6±2.4
		median	1.6	2.6	5.1	12.1
		range	0.9 – 3.6	1.1 – 5.1	1.4 – 11.9	3.9 – 17.0
VFI	AGIS CS	mean±sd	99.0±1.3	94.1±3.9	79.0±9.2	44.6±20.0
		median	99.0	95.0	81.0	49.5
		range	92 – 100	71 – 100	49 – 91	3 – 74
	GSS CS	mean±sd	99.5±0.7	96.0±4.2	86.1±10.9	54.1±26.6
		median	100.0	97.0	91.0	56.0
		range	96 – 100	72 – 100	49 – 99	3 – 93
	eGSS CS	mean±sd	99.0±1.1	95.9±1.8	88.8±5.0	54.7±20.4
		median	99.0	96.0	90.0	60.0
		range	93 – 100	91 – 100	69 – 100	3 – 85