Look, I’m not trying to be mean here. But if someone says something surprising, then the first thing I will do is go to google and spend a few minutes (or even a few days) remedying my lack of knowledge. That happened in this very thread with regard to my example of peppered moths as an example of adaptation: I did not know that the original study had been discredited, so I immediately searched and confirmed that it had been discredited. Then I came back to the thread and honestly said so.
If someone claims they have studied the human eye, but they do not know that there is a blind spot in the human eye, or the reason for it, and they haven’t bothered to take the 10 seconds to google and confirm it and maybe find an explanatory diagram, then what does this tell us?