1. Clear Data   Short press = Current values reset.

      Long press = Switch the instrument on/off

2. Import   Import patient’s refraction data.

3. Export   Export patient’s refraction data

4. Far/Near Vision :  Far vision mode (Mountain)

     Near Vision Mode (Flower)

5. Blue touch:     Comparison of patient’s refractions

6. Refraction management buttons.

7. Acuity management : lines, letters, randomisation