Clinical and demographic data (mean (SD)) of the patients with NPG (n=36) and healthy subjects (n=21)
| Normal pressure glaucoma | Healthy subjects | Significance* | |
|---|---|---|---|
| *Unpaired Student's t test. | |||
| MD = mean deviation, PSD = pattern standard deviation, SF = short term fluctuation, CPSD = corrected pattern standard deviation, CDR = cup to disc ratio, NS = not significant. | |||
| Age (years) | 57 (13) | 51 (13) | NS |
| Intraocular pressure (mm Hg) | 16 (3) | 16 (3) | NS |
| Systolic blood pressure (mm Hg) | 119 (14) | 127 (17) | NS |
| Diastolic blood pressure (mm Hg) | 73 (10) | 76 (11) | NS |
| Heart rate (beats/min) | 73 (11) | 74 (12) | NS |
| CDR (area) | 0.51 (0.13) | 0.32 (0.15) | p=0.0001 |
| Optic nerve head area (mm2) | 1.70 (0.41) | 1.77 (0.34) | NS |
| MD (dB) | −4.7 (4.6) | −0.4 (1.3) | p<0.0001 |
| PSD (dB) | 6.8 (5) | 1.7 (0.6) | p<0.0001 |
| SF (dB) | 2 (1) | 1.2 (0.5) | p=0.0001 |
| CPSD (dB) | 6.6 (5) | 0.89 (0.72) | p<0.0001 |
| Contrast sensitivity 3 (cpd) | 1.47 (0.3) | 1.78 (0.36) | p=0.006 |
| Contrast sensitivity 6 (cpd) | 1.72 (0.25) | 1.88 (0.5) | NS |
| Contrast sensitivity 12 (cpd) | 1.24 (0.28) | 1.52 (0.47) | p=0.04 |
| Contrast sensitivity 18 (cpd) | 0.84 (0.37) | 1.14 (0.48) | p=0.04 |