- Remove the lens cover
- Remove the lens housing
- First thing in the morning before eating, drinking, smoking or brushing your teeth, apply a thick drop of saliva (without bubbles) to the glass surface
- Wait for the saliva to dry. This will take about 5-15 minutes (the saliva must be completely dry for accurate results).
- Replace the lens housing onto the tube
- Hold the monitor up to your eyes to view the image
- Compare the image to the chart supplied with the kit (see right-hand side of the chart)
- Record your results in the KNOWHEN® App
