I have not gotten into optometry schools yet!...but just wanted to tell you this anyway...
I honestly do not think they are going to sit there and count your W's...have strong OAT scores, great L.O.R's, strong personal statement...and you could get an interview...there, they might ask you about the W's...having family problems sounds like a valid excuse...howevere, you should assure them that the problems are over and you have been doing great eversince...
also, you might want to call a couple of the schools and just ask...THAT WOULD BE THE BEST THING TO DO!!!
also, it all depends when you had those W'S...WERE THEY ALL IN THE PAST YEAR? or that was 3 years ago and you have 2-3 years of great grades following the w's?
YOU SHOULD ALWAYS APPLY ANYWAY...its your future...forget about the application fees and just apply...i am sure if you have other great things in your application, you will get interviews...GOOD luCK!