Relationship among Photopic Negative Response, Retinal Nerve Fiber Layer Thickness, and Visual Field between Normal and POAG Eyes

Table 1

Demographic and clinical data for this study.

	Normal	Glaucoma	𝑃 value
Number of subjects	38	124
Gender (male/female)	25/13	73/51	0.566*
Age (yrs) mean ± SD	43.1±14.5	45.2±15.9	0.152
Refraction (D) mean ± SD	−0.97±1.97	−1.25±1.97	0.525
Visual field MD (dB) ± SD	−1.23±1.17	−10.66±9.85	0.001
Average RNFL thickness (Cirrus OCT); (μm) mean ± SD	101.7±10.9	69.9±14.0	0.001
PhNR amplitude (W/W)	45.6±10.9	26.5±12.7	0.001
PhNR amplitude (B/R)	47.8±10.7	27.2±13.5	0.001

D: diopters; MD: mean deviation; SD: standard deviation; PhNR: photopic negative response; W/W: white stimulus and white background; B/R: red stimuls and blue background; 𝑃*: Chi-square test; P: independent-sample t-test.