The entry requirements for Optom are AAB - with the 2 A's in hard science (Biology, maths, chemistry and physics) with a minimum of a B in GCSE Maths and C in GCSE English - I hope that answers the first two questions.

As for the interview - it's really informal. You go on a tour of the faculty and meet with an interviewer who will ask you some short questions about the course and your interest in it. It's a really relaxed atmosphere, so I wouldn't worry too much about that! In terms of the lowest offer they would accept, then that's entirely dependant on the amount of people who first achieve their stated offer. Optometry usually proves to be a very popular course so its unlikely it will shift too much from the AAB previously stated.