Actually, I don't at all remember what the "questions" were; the entire interview (which was conducted one-to-one) was more a conversation than an inquisition. It's closed-file and seems to be more about getting to know you ("as a person") than about drilling you in regard to anything academic or optometry-specific.
That's correct. Most of the time, they would like to know you to know more about your personality. It is very laid back in general. I would recommend looking up their website to know more about their program, the eye institute and how their modules work. I got the president, Dr. lewis, as my interviewer, but I totally didn't know! He actually told the staff not to tell me because he didn't want to give me extra pressure.
I would just recommend dress professionally and show confidence in yourself (not arrogance tho!)