Description
Features
- Easy to operate, complete the test instantly
- Suitable for large-scale visual acuity screening
- Suitable for adults, children and people who cannot cooperate
- Suitable for standing, sitting, lying and other detection posture
Technical specifications
| Ball Mirror | 10.0 D to +10.0 D |
| The Lens Lattice Of The Ball Is | 0.25 D |
| The Ball Mirror Tolerance Is | 0.5 D |
| Column Mirror | 5.0 D to + 5.0 D |
| The Mirror Lattice Of The Column is | 0.25 D |
| The Column Mirror Tolerance Is 0 | 25 D |
| Axis Range | 1° to 180° |
| External Device Computer Or Tablet Containing |
12.6 oz (360 g) |