Eye tracking is gaining traction in VR and other industries. Given that gaze behavior can reflect our interests, personality, etc., how much will eye tracking further escalate privacy intrusion by tech companies?

I found interesting research discussing the privacy implications of eye tracking (e.g., [https://link.springer.com/chapter/10.1007/978-3-030-42504-3\_15](https://link.springer.com/chapter/10.1007/978-3-030-42504-3_15)). Here just an excerpt:

>Our analysis of the literature shows that eye tracking data may implicitly contain information about a user’s **biometric identity, gender, age, ethnicity, body weight, personality traits, drug consumption habits, emotional state, skills and abilities, fears, interests, and sexual preferences**. Certain eye tracking measures may even reveal specific cognitive processes and can be used to diagnose various physical and mental health conditions.

It is …

age analysis biometric body data eye tracking gender habits health identity information literature may mental mental health physical privacy processes skills state tracking