Table 2.
Neuro-ophthalmological findings at initial diagnosis in 113 patients with IIH
| Visual acuity | – | n = 106 |
| Abnormal | n (%) | 17 (16.0) |
| Worse eye (logMAR) | Median (IQR; AR) | 0 (−0.1–0.0; −0.1–1.0) |
| Perimetry | – | n = 96 |
| Abnormal | n (%) | 64 (66.7) |
| Mean deviation in perimetry of worse eye (dB) | Median (IQR; AR) | −3.1 (−11.6–−1.1; −32.6–0) |
| Fundoscopy | – | n = 103 |
| Abnormal | n (%) | 98 (89.1) |
| Frisén scale | Median (IQR; AR) | 3 (2–4; 0–5) |
| Optical coherence tomography | – | n = 99 |
| pRNFL thickness (µm) | Median (IQR; AR) | 199 (132–299; 55–560) |
| GCL volume (mm3) | Median (IQR; AR) | 1.13 (1.05–1.17; 0.60–1.25) |
| Ultrasonography | – | n = 58 |
| ONSD > 4.5 mm and/or bat sign | n (%) | 53 (86.9) |
| ONSD of worse eye (mm) | Median (IQR; AR) | 5.4 (5.0–5.7; 3.9–7.3) |
| ONSD intereye difference (mm) | Median (IQR; AR) | 0.15 (0.04–0.28; 0.00–0.82) |
AR absolute range, IQR interquartile range, dB decibels, GCL ganglion cell layer, logMAR logarithm of the minimum angle of resolution, ONSD optic nerve sheath diameter, pRNFL peripapillary retinal nerve fiber layer.