Description
Features
- Can check the refractive error precisely
- For different groups of people using the ultrasonic ranging
- Cross line, flashing light and sound technology
- To find out the probably potential refractive problems
- Ideal for babies, seniors and patients with language barrier
- Necessary equipment for a doctor
- Master the refractive status of patients
Technical Specifications
| DS Range | 7.50 D to +7.50 D |
| DS Resolution | 0.25 D to 0.01 D |
| DC Accuracy Range | 0.50 D |
| DC Resolution | 0.00 D to 3.00 D |
| DC Accuracy | 0.25 D to 0.01 D, ±0.50 D |
| Axis Range | 1° to 180° |
| Axis Resolution | 1° |
| Axis Accuracy | 5° |
| Pupil Size Range | 0.15 in to 0.3 in (4.0 mm to 9.0 mm) |
| Pupil Size Resolution | 0.003 in (0.1 mm) |
| Pupil Size Accuracy | 0.003 in (0.1 mm) |
| Pupil Distance Range | 1.3 in to 3.14 in (35 mm to 80 mm) |
| Pupil Distance Resolution | 0.03 in (1 mm) |
| Pupil Distance Accuracy | 0.03 in (±1 mm) |
| Gaze | 0° to 20° |
| Measuring Distance | 49.37 in (1 m), 1.9 in (5 cm) |
| Time Per Measurement | 1 second |