Anatomical to Round implants - will staying with the same cc's look bigger or smaller?

should have minimal change in volume but depending on your anatomy, may look a little fuller in the upper pole.  I wouldn't anticipate huge differences but why is your motivation for going to round implants after the new technology anatomic implants?

In general, round implants will have slightly more upper pole fullness, especially in the first few months to years, when compared to anatomic implants. The distribution of volume is different in a round implant so while you may see more upper pole fullness, you may see a corresponding slight decrease in the lower pole if you are going with the switch to round. Why are you contemplating a switch? Is it the age of your implants, capsular contracture, deflation, sagging of the breasts or some other issue? It will also make a little bit of a difference whether you select saline vs. silicone. In my experience, a saline implant of X cc's looks about 5% larger than a silicone implant of X cc's once settling has happened. I don't have a great physiologic or scientific answer for why this is, but I usually "upsize" a few cc's with silicone to get the same projection that a saline implant or saline sizer on the operating table might indicate. Hope this helps!