Table 1. Clinical and Demographic Characteristics (mean ± standard deviation) according to the Diagnostic Category.

	Healthy(n = 334 eyes)	OHT(n = 234 eyes)	GON with Normal VF(n = 239 eyes)	Glaucomatous VF loss(n = 438 eyes)
Age (yrs)	48±15	59±13	62±13	63±13
Sex, female	209 (63%)	140 (60%)	150 (63%)	240 (55%)
Race
Caucasian	157 (47%)	141 (60%)	145 (61%)	205 (47%)
African-American	172 (52%)	87 (37%)	85 (36%)	219 (50%)
Other	5 (1%)	6 (3%)	9 (4%)	14 (3%)
MD (dB)	−0.2±1.4	−0.1±1.4	−0.6±1.7	−5.0±5.7
PSD (dB)	1.6±0.4	1.6±0.6	1.8±0.9	5.1±3.7
VFI (%)	99.1±1.2	99.1±1.4	98.7±2.4	87.5±16.7
Estimated number of RGCs (cells)	1,149,788±209,240	1,013,631±189,069	895,235±206,495	687,219±293,653
PercentRGC (%)	95.1±7.3	93.4±8.7	85.1±13.5	66.9±24.6

MD = mean deviation.

PSD = pattern standard deviation.

VFI = visual field index.

RGC = retinal ganglion cell.

PercentRGC = estimated percent of RGCs remaining.