Changes in peripapillary retinal nerve fiber layer thickness in patients with primary open-angle glaucoma after deep sclerectomy

Table 2 Mean peripapillary retinal nerve fiber layer thickness measurements in eyes that underwent deep sclerectomy compared with the contralateral eye of the same patient as measured by optical coherence tomography

Parameter	Pre-operative (μm)	Post-operative (μm)	P value1
Overall
Surgery group	71.6 ± 18.6	89.5 ± 21.2	0.0151
Control group	72.5 ± 17.8	71.7 ± 20.3	0.165
Superior quadrant
Surgery group	85.8 ± 25.1	96.7 ± 23.2	0.0211
Control group	85.7 ± 24.1	86.5 ± 21.5	0.114
Nasal quadrant
Surgery group	54.6 ± 21.5	72.0 ± 25.1	0.0141
Control group	56.5 ± 18.9	58.2 ± 22.1	0.356
Inferior quadrant
Surgery group	81.3 ± 25.1	69.2 ± 22.5	0.0231
Control group	83.1 ± 18.2	83.3 ± 20.1	0.453
Temporal quadrant
Surgery group	56.2 ± 19.2	75.2 ± 20.1	0.0161
Control group	57.0 ± 18.5	58.1 ± 21.5	0.451

¹Significant at P < 0.05.