Are there any treatments besides allowing time to pass that will erase hemosiderin deposits from below my eyes? (photo)

The last of my bruises from lower-lid surgery suddenly turned brown and were joined by dark circles below each eye after about an hour bike ride in the sun using a high SPF sunblock (5 weeks post-op, now 8). I am of Italian descent and have dark, easily tanned skin. I do not burn under normal circumstances. I diligently apply zinc oxide to the area and avoid the sun as much as possible (wearing sunglasses and a hat). Is there any treatment for this problem? With time will the marks go away?