Table 4 Topographic structure–function relationship between regional visual field sensitivity measured with standard automated perimetry 24-2 or standard automated perimetry 10-2 or combined SAP and the corresponding ganglion cell-inner plexiform layer(GCIPL) thickness in glaucoma patients.

SD-OCT GCIPL Sector	Isolated peripheral nasal step (n = 30)		Isolated paracentral scotoma (n = 37)		Paracentral & nasal scotoma (n = 38)
SD-OCT GCIPL Sector	r	P value	r	P value	r	P value
SAP 24-2
ST	0.221	0.241	0.303	0.068	0.627	< 0.001
IT	0.235	0.210	0.397	0.074	0.464	0.003
SN	0.183	0.333	0.308	0.064	0.661	< 0.001
IN	0.284	0.128	0.514	0.001	0.524	0.001
SAP 10-2
ST	0.124	0.504	0.387	0.018	0.651	< 0.001
IT	0.533	0.002	0.435	0.007	0.555	< 0.001
SN	0.176	0.353	0.190	0.261	0.678	< 0.001
IN	0.286	0.126	0.373	0.023	0.629	< 0.001
Combined SAP
ST	0.203	0.281	0.393	0.016	0.687	< 0.001
IT	0.515	0.004	0.543	0.001	0.676†	< 0.001
SN	– 0.043	0.822	0.216	0.199	0.677	< 0.001
IN	0.283	0.130	0.358	0.030	0.707†	< 0.001

Statistically significant values (P < 0.05) are shown in bold.
GCIPL, Ganglion cell-inner plexiform layer; SAP, standard automated perimetry; SD-OCT, spectral domain optical coherence tomography.
r = Pearson’s correlation coefficient.
*Statistically significant difference with P < 0.05 between SAP 24-2 and SAP 10-2.
^†Statistically significant difference with P < 0.05 between SAP 24-2 and combined SAP.
^‡Statistically significant difference with P < 0.05 between SAP 10-2 and combined SAP.

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