Have you ever felt like the person you are video calling is constantly looking away when talking to you? Well, iOS 13 aims to fix that with the new Attention Correction filter, which has made its way to the beta release. Maybe it's not right to call it a filter but it does artificially correct your eyes in real-time and it looks like you are looking straight to the camera instead of the screen. Screenshots from FaceTime As you can see from the photos, it's really hard to notice any artificial correction - it looks a lot like the real deal. The feature is available on iOS 13...
Source: https://www.gsmarena.com/ios_13_to_bring_attention_correction_feature_to_facetime-news-37923.php