Figure 1
RETeval™ test protocol: DR test. Test result of both eyes in a patient with T1D without DR
Figure 2
Skin electrode array (Sensor Strip, LKC Technologies, Inc.) placed on the orbital rim, 2 mm from the edge of the lower eyelid
Figure 3
An arrangement of three electrodes: An active (positive) electrode, a reference (negative) electrode, and a ground electrode, all within a single adhesive tape