Table 1. IOP measurements with Tono-Pen, I-Care and GAT.
| Tonometer | Mean | Minimal value | Maximal value |
| I-Care | 16.29±2.726 | 8 | 22 |
| Tono-Pen | 16.32±2.393 | 10 | 21 |
| GAT | 15.62±2.281 | 10 | 21 |
n=78 (mm Hg)
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