If you're using Eyeware Beam: 60FPS+ webcam eye tracking was made available for Star Citizen with the latest release, if your webcam supports higher frame rates (e.g. Logitech Brio, Elgato Facecam, ...).
Webcam-Based Eye Tracking vs. an Eye Tracker [Pros & Cons] - iMotions
Tagged with webcam eye tracking - Tobii
GitHub - stepacool/Eye-Tracker: Eye tracking using OpenCV, Python.
The Top 15 Eye Tracking Platforms for Market & User Research | Insight Platforms
What Is The Eye Tracking Challenge And How To Do It With Your Webcam Or IPhone