Research Article

Correlations between Steady-State Pattern Electroretinogram and Humphrey Visual Field Analyzer Global Indices and Their Associations with Retinal Ganglion Cell Layer-Inner Plexiform Layer Thickness in Glaucoma Suspects

Table 1

Demographic and clinical characteristics of participants with preperimetric glaucoma.

N = 49 eyes (26 patients)Mean ± SD

Age (years)58.96 ± 12.82
Sex16 females (62%)
BCVA (logMAR)0.035 ± 0.084
IOP (mmHg)17.43 ± 4.08
Vertical C/D ratio0.63 ± 0.15

Humphrey field analyzer
24-2 MD (dB)−0.0004 ± 1.12
24-2 PSD (dB)1.56 ± 0.43
24-2 VFI (%)99.22 ± 0.90
10-2 MD (dB)0.0361 ± 0.85
10-2 PSD (dB)1.18 ± 0.20

ss-PERG
Magnitude (μV)1.70 ± 0.63
MagnitudeD (μV)1.41 ± 0.68
MagnitudeD/Magnitude ratio0.81 ± 0.13
Signal to noise ratio5.34 ± 3.36

GCL+IPL thickness in OCT
Superior sector (µm)77.45 ± 7.11
Superior nasal sector (µm)80.02 ± 9.33
Inferior nasal sector (µm)79.45 ± 12.92
Inferior sector (µm)77.64 ± 15.37
Inferior temporal sector (µm)80.68 ± 12.24
Superior temporal sector (µm)77.55 ± 6.70
Average GCL + IPL thickness (µm)79.19 ± 9.62

BCVA: best corrected visual acuity, IOP: intraocular pressure, C/D: cup-to-disc, MD: mean deviation, PSD: pattern standard deviation, VFI: visual field index, ss-PERG: steady state pattern electroretinogram, OCT: optical coherence tomography, GCL + IPL: ganglion cell inner plexiform layer.