Table 4.

Visual Function Characteristics of Patients With Idiopathic Intracranial Hypertension With (IIHWP) and Without Papilledema (IIHWOP)

Characteristic	IIHWOP (n = 20)	IIHWP (n = 20)	P value
Mean (range) of follow-up	25 months (0–6 years)	25.6 months (1–8 years)
Visual acuity (mean [SD] logMAR)
Initial	0.05 (0.10)	0.08 (0.26)	.430
Final	0.04 (0.10)	0.12 (0.50)	.694
Visual field (Humphrey – mean [SD] defect)
Initial	−3.71 (5.47)	−3.21 (2.86)†	.861
Final	−3.41 (5.17)	−2.20 (1.26)	.875
Visual field interpretation: initial‡ (% per visual fields)
Visual fields	40	39†
Normal	29 (73%)	5 (13%)	.002
Enlarged blind spot	0 (0%)	23 (59%)	<.001
Nasal defects	2 (5%)	4 (10%)	.317
Constriction	0 (0%)	4 (10%)	.083
Non-physiologic constriction	8 (20%)	0 (0%)	.046
Altitudinal/arcuate/temporal	1 (3%)	3 (8%)	.317
Visual field interpretation: final‡ (% per visual fields)
Visual fields	40	38§
Normal	28 (70%)	19 (50%)	.480
Enlarged blind spot	0 (0%)	11 (29%)	.008
Nasal defects	3 (8%)	4 (11%)	.414
Constriction	0 (0%)	3 (8%)	.157
Non-physiologic constriction	8 (20%)	0 (0%)	.046
Altitudinal/arcuate/temporal	1 (3%)	1 (3%)	1.000

^†One patient had a congenital glaucoma in one eye.

^‡Significance test for having the characteristic in at least one visual field.

^§One patient had such poor vision that the visual field could not be reliably tested.

SD = standard deviation.