Well, according to Wikipedia, he has a degree in surgery. You're right. I was aware he was a medical man, not sure where I got the idea that his specialty was optical. Probably from some terror expert on television.

Maybe I'm confusing the good doctor with some other terrorist-physician. It seems to be the rage these days. They are giving the term "doctors without borders" a new meaning, altogether. I'm curious if these doctors from Muslim countries have anything like the Hippocratic Oath.