Table 1.
Demographic, ocular parameters, and ET-1 plasma levels in patients with retinitis pigmentosa and healthy controls.
| Retinitis pigmentosa | Controls | P < 0.05 | |
|---|---|---|---|
| Age, years | 33.8 ± 7.3 | 36.0 ± 6.8 | 0.155 |
| Visual acuity, decimals | 0.95 ± 0.07 | 0.97 ± 0.04 | 0.235 |
| IOP, mmHg | 15.8 ± 2.5 | 15.6 ± 2.3 | 0.81 |
| SAP-PSD, dB | 6.09 ± 4.22 | 1.98 ± 0.98 | 0.001 |
| SAP-MD, dB | −7.90 ± 1.75 | −1.95 ± 0.83 | 0.006 |
| ERG b-wave, μV | 45.08 ± 8.24 | 65.36 ± 9.84 | 0.002 |
| ERG a-wave, μV | 28.13 ± 5.77 | 38.16 ± 5.57 | 0.019 |
| ET-1, pg/mL | 2.143 ± 0.258 | 1.219 ± 0.236 | 0.002 |
| Choroidal thickness, μm | 226.75 ± 76.37 | 303.9 ± 39.87 | 0.023 |
| Aqueous flare, pc/ms | 10.51 ± 3.97 | 5.66 ± 1.29 | 0.0001 |
Note: values are presented as means ± SD; n = 24 per group.
IOP = intraocular pressure; SAP = standard automated perimetry; PSD = pattern standard deviation; MD = mean defect; dB = decibel; ERG = electroretinogram; μV = microvolt; ET-1 = endothelin-1; pg/mL = picogram/milliliter; μm = micrometer; pc/ms = photon counts/millisecond.