Optometry Schools - Private vs Public

Please help me understand and prepare for the admission process by answering the following questions:
1. How many private optometry schools are out there and name them by ranking them?
2. For public Optometry schools, I heard that some of them do not accept applications from out-of-state students, is it true ? If it is who are they so I do not consider them in my curriculum of meeting their classess requirements. I am from California.
3. Should I wait until I complete of all science classes before preparing for OAT ? since I can take many OATs as I can. Please comment. Any recommendation of what is the best, quickest, most effective way to prepare for OAT to yield highesh score possible.
4. Is working for an optical company in the summer better than shadowing with an optometrist ?
5. Is it worth the money to apply when you meet the 90 units requirement for the optometry school ? because I heard they all say they preferred the BS/BA degree before admission?
Thanks,