resync iphone 5 with dropbox after phone reset

Is it correct that you now have 1Password on your iPhone, but there are no data?

If that is the case and you are sure your data are all intact on your Mac and iPad, here's what I'd do in your case. I would delete 1Password from my iPhone, reset the device, and download a fresh copy. When you do that and open it, you will be asked if you're a new user or have used it before. Take the second option, and then you'll be asked whether your data are on Dropbox or iCloud. Pick Dropbox. You'll be asked to log in to your Dropbox account, unless you have the Dropbox application installed on your iPhone and are already logged on to Dropbox. Once you have verified your identity to Dropbox, it will ask you to chose the account where your data have been synced, then to pick the sync file itself. You'll be asked for your 1Password master password. If you have only one vault, there will be only one choice. If you are syncing multiple vaults, pick the one that is your primary vault. Your data will be pulled down from Dropbox and restored to 1Password. Things should be automatic from there on.

If any of this isn't clear, or if I have misunderstood your situation in any way, please post back to clarify before you proceed.

@sylvia_diaz - Hooray! Glad that helped you. And that you are back up and running.