Hi @user-f43a29 , are there any publications with Pupil Labs that report the accuracy of the devices with older adults? How well do the eye-trackers perform with older adults who have eye changes (e.g., cataracts) or thicker glasses like bi/trifocals? We're in preliminary discussions for a research project focusing on older adults and these were some questions that came up. Thanks in advance!

Hi @user-2ff673 ! In our Neon Accuracy Test Report, we show how we assessed & validated Neon's accuracy [~1.3 to 1.8 degrees]. We included participants up to 85 years of age. We also maintain a Publication List, where you can filter to only see publications that used Neon

With respect to cataracts and older age, while we have not done a thorough analysis, it is useful to note that NeonNet's deep-learning powered system uses the whole of the eye images. It uses significantly more than what you find in a dark pupil detection method, for example.

When it comes to resulting gaze estimates, we also offer two features that can be helpful in such situations:

• Gaze Offset Correction can account for when NeonNet's predictions deviate from where the wearer is actually looking. As mentioned, it has not been explicitly tested (by us. at least) on people with cataracts, but it applies a linear offset that only needs to be measured once. The idea being that they can come back, let's say 4 months later, you load up their Wearer Profile (which automatically applies the saved Offset Correction), and simply continue recording data
• Monocular Gaze Estimates -> This can be useful for people where you only want to (or can only) use one eye to estimate their gaze

For bi/trifocals, you technically could have custom lenses made for I can see clearly now. The lens holders have a standard shape. Depending on the experiment, one can also correct for only a specific distance

If it helps, we can organize a Demo and Q&A call for this user!

Hi All! I'm sharing our recent study protocol paper with a sneak peek into our set-up with Neon in infants 👶 during free play and book-sharing 📖 . The project is based in Babylab at the Institute of Psychology, Polish Academy of Sciences, Warsaw, Poland: https://bmcpsychology.biomedcentral.com/articles/10.1186/s40359-025-02645-9