First things first.
Consider the business plan, something more than "I will borrow some money from the bank and be an entrepreneurial eye doctor." Borrowing money is just not that easy; banks want to know you have a high probability of paying them back on time. Being ambitious gets you no points. Having assets to post as collateral does get you points. Being "entrepreneurial" gets you no points; showing that your presence in a specific community adds something of sufficient net benefit that it can sustain your practice and make you a good risk does get you points. It helps to be able to show why you will likely be successful. Delve into the demographics of the community. Show the existing resources, project both the need and expected depletion (retirements) of the resources and show why you are going to be successful.