Nailfold capillary abnormalities of 260 fingers of 26 patients with Raynaud’s phenomenon (RP) assessed with either an ophthalmoscope or a microscope
| Ophthalmoscope | Microscope | Correlation | |
| Abnormalities (n) | |||
| Giant loops | 43 | 43 | 1 |
| Avascular areas | |||
| First degree | 145 | 138 | 0.837 |
| Second degree | 48 | 45 | 0.93 |
| Third degree | 5 | 5 | 1 |
| Tortuosity | |||
| First degree | 108 | 120 | 0.861 |
| Second degree | 32 | 38 | 0.955 |
| Third degree | 10 | 10 | 1 |
| Final diagnosis | |||
| Primary RP (14 patients) | 15 | 15 | 1 |
| Secondary RP (12 patients) | 11 | 11 | 1 |