Ophthalmology has a possibility of being your own boss. Anesthesiology does not unless you have a pain clinic, which is really dull in my opinion.
I did not have the support of my medical school department. I think the chair had mental illness, severe depression, and no longer practices medicine. The program director was nasty, wouldn't even let me do a 4th year elective until after application deadlines. I had to resort to stellar recommendations but from a no-name guy in private practice (volunteer faculty), a pediatrics faculty (not peds ophtho), and a general surgery faculty. I managed to get a decent residency (building, facilities, surgical volume, decent number of faculty in every subspecialty, not just one in a subspecialty) albeit not a hugely famous one.
A gap year tends to look bad. It makes you look like a loser who couldn't match into anything, even if that didn't happen. Only the most spectacular gap year will be persuasive that the applicant is not a loser.