If your doctor says everything is fine, you probably don't need to worry...
I don't really know what your spots are, but they kind of resemble drusen. You can look on google images for other examples.
Call your doctor and ask. The good news is that he/she said that everything looked fine so there should be no worry. Still, you have a legit question and deserve a clear answer. Don't be shy about asking questions, and don't be offended if you relay the message to a tech, who needs to ask the doc and then get back to you.