To answer your questions, no, Optometry schools will not accept the MCAT over the OAT. I would reccomend taking the OAT in October. Since you have already taken the MCAT, the OAT won't be nearly as bad.
I don't think if you applied now, you would be admitted to an Optometry school for this Fall 2002, mainly b/c you haven't taken the OAT. Also, it is highly reccomended to apply early in the application process i.e Sept-Dec 2001 for Fall 2002 entry.
I would suggest to take the OAT this October, and apply to Optometry schools in Sept & October for Fall 2003 entry.
Good Luck
