I'm not sure about this discussion AI but I'm an eye doctor and the eyes definitely can tell a lot about someone's health. We can see signs of diabetes, hypertension, systemic inflammation, etc. I'm assuming the AI is looking at retina arteries and signs of diabetic and hypertensive changes to qualify the rush of heart attack.

If you are curious what diabetes in the eye looks like just Google diabetic retinopathy.

Iridology is bs though