Table 2.

The demographic characteristics of the normal control subjects and patients with NAION.

Characteristic	NAION patients (n = 5)	Normal controls (n = 41)	p values
Age (years)	66.8 ± 7.8	63.0 ± 7.6	0.437
Gender (M:F)	3:2	14:27	1.00
Refractive error (D)	0.80 ± 1.27	−0.38 ± 1.68	0.525
MD (dB)	−10.25 ± 8.73	0.49 ± 0.92	0.001
PSD (dB)	9.25 ± 4.51	1.51 ± 0.24	0.001

Note. M = male; F = female; D = dioptres; NAION = non-arteritic anterior ischaemic optic neuropathy; MD = mean deviation; PSD = pattern standard deviation; dB = decibel.