Eye Behavior
The following pages describe eye behavior and its impact on eye tracking quality as well as physical and behavioral differences in humans which can affect each individual’s experience using eye tracking.

The Eye
Provides an overview of the relevant eye parts needed for eye tracking.
Eye Movements
Explains the most common types of eye movement when working with eye tracking.
Signals & Quality
Overview of signal quality together with accuracy and precision.
Visual Angles
Defines visual angles and describes how to utilize them in designing great experiences.
Hardware Accuracy
Eye tracking varies from person-to-person. This section is made to help you to understand and be able design for this fact.