Value of optical coherence tomography measurement of macular thickness and optic disc parameters for glaucoma screening in patients with high myopia

Table 5 Comparison of mean ganglion cell layer thickness and general loss of volume and focal loss of volume in the three groups (mean ± SD, n)

Group	Upper GCC (μm)	Bottom GCC (μm)	Mean GCC (μm)	GLV (%)	FLV (%)
Group A (n = 60)	94.15 ± 6.78	92.45 ± 7.45	92.56 ± 7.45	5.16 ± 4.12	1.36 ± 1.12
Group B (n = 66)	71.45 ± 6.56a	78.26 ± 11.65a	73.66 ± 8.12a	23.15 ± 8.97a	7.54 ± 4.85a
Group C (n = 70)	83.54 ± 5.54a,b	82.64 ± 8.78a,b	82.43 ± 8.26a,b	15.05 ± 8.78a,b	3.88 ± 2.56a,b
F value	205.836	36.474	88.326	85.061	57.448
P value	0	0	0	0	0

^aP < 0.05 vs group A.

^bP < 0.05 vs group B.

GCC: Ganglion cell layer; GLV: General loss of volume; FLV: Focal loss of volume.