Clinical Study

Topographic Relationship with a Retinal Nerve Fiber Layer Defect Differs between β-Zone and γ-Zone Parapapillary Atrophy

Table 1

Comparison of variables between β-zone and γ-zone parapapillary atrophy group.

β-zone group (49 eyes)γ-zone group (40 eyes) value

Age (year)59.65 ± 9.6241.70 ± 9.22<0.001
Female, n (%)24 (49.0)16 (40.0)0.397
Hypertension, n (%)16 (32.7)5 (12.5)0.026
Diabetic mellitus, n (%)12 (24.5)2 (5.0)0.012
Cold hands, n (%)11 (28.2)7 (18.4)0.310
Untreated intraocular pressure (mm Hg)15.27 ± 3.0415.65 ± 3.330.571
Refractive error (D)−0.08 ± 1.49−5.60 ± 1.84<0.001
Axial length (mm)23.34 ± 0.7826.17 ± 0.72<0.001
Central corneal thickness (μm)563.33 ± 38.50554.88 ± 34.680.377
Visual field (dB)
 MD−3.06 ± 2.28−2.78 ± 2.640.594
 PSD5.45 ± 3.674.76 ± 3.710.378

Data are presented as mean ± standard deviation or number (%). Comparison performed using independent t-test. Comparison performed using chi-square test.