Tabel 3.

Estimated (mean ± standard deviation) retinal ganglion cell losses (estimated using the combined structure function index) by sector for glaucomatous eyes for each of the ten sectors of a structure function map. Sectors with and without visible localized retinal nerve fiber layer defects are compared (n = 660 sectors).

	Number of RNFL defects	CSFI for sectors of glaucomatous eyes without RNFL defects	CSFI for sectors of glaucomatous eyes with RNFL defects	P valuesa
Sector 1	2	9 ± 27	43
Sector 2	12	5 ± 27	50 ± 17	<0.001
Sector 3	10	25 ± 18	61 ± 14	<0.001
Sector 4	0	19 ± 23	No eyes with defect in sector 4
Sector 5	1	16 ± 30	65
Sector 6	0	4 ± 34	No eyes with defect in sector 6
Sector 7	6	23 ± 27	62 ± 18	<0.001
Sector 8	46	39 ± 22	58 ± 22	0.002
Sector 9	52	23 ± 22	60 ± 20	<0.001
Sector 10	7	12 ± 38	75 ± 32	<0.001
All sectors	136	15 ± 29	59 ± 21	<0.001

RNFL = retinal nerve fiber layer; CSFI = combined structure function index.

^at test.