How to position the device correctly? What are the glints?
When positioning a user for eye gaze, always remember that the user should be in a comfortable position, and the eye gaze solution should adapt to the user. Doesn't matter if you are working with Windows or the iPad, the positioning should follow always the same rules.
Positioning guide: 
- Position Hiru 50-60 cm away from the user's face for
- Hiru must be placed under the screen
- The upper part of the screen of an iPad or Windows device should be in line with the user's eyes
- The screen should be parallel to the face and at the same angle.
Check the video:
The feedback ring on the Hiru will indicate when eyes are detected.
💡 To determine the best position, utilize the video feed in Easy Click on Windows or the positioning tool in the Hiru App on iPad.
Eyes need to be visible
Ensure that the user's eyes are clearly visible to ensure proper detection and accurate capture of eye movements by the eye tracker.
The two small dots in the circle on the picture are called glints. They are reflections of the infrared lights on the Hiru eye tracker in the user's eye. Their visibility is crucial for the proper detection and correct accuracy of the eye tracker.
For optimal positioning, consider using a suitable casing for your devices such as Oskol for Windows or Oskol for iPad by Irisbond together with mounting arms. These casings enhance the eye gaze experience.