Troubleshooting webcam eye tracking


  • With webcam eye tracking, only images, videos and survey elements can be tested.
  • Websites and apps can be uploaded as screenshots.

Eye-tracking with webcam

  • Make sure that you have only one monitor connected. The system may assume the webcam is attached to the other monitor.
  • Select your correct screen resolution when creating a study. If the screen resolution you select is greater than that of the monitor you are using, you will not be able to run the study on that monitor.
  • If the calibration freezes, restart the tester software.

Why is my data so inaccurate with webcam eye tracking?

Webcam eye tracking is not able to show the exact position of your users’ gaze. Rather, it provides a comprehensive overview of an area that has been focused. The longer the recording, the less accurate the data will become.

Nevertheless, please follow these guidelines:

  • Illuminate the face from the front.
    Make sure the light source is bright enough to illuminate your face and originates from the front. Avoid harsh shadowing.
  • Try not to wear glasses.
    Glasses often reflect light back and are generally harder to see through, which can make it difficult to recognize your eyes.
  • Keep the head straight.
    Try to keep your head centred and with minimal movement. This makes it easier to calculate the position of your pupils.

If you’re looking for a more detailed eye tracking experience, infrared eye tracking is the way to go because it accurately reproduces each user’s gaze direction. Especially if you are conducting research on user behavior in the lab.