Reinjecting after tyndall effect - is it safe?

I developed some very uncharacteristic blueish shadows under my eyes since I got Versa & then Volbella in Cali. I did not have such issues elsewhere in the past. 1/ I got injected about 3 months ago & wd like to get more fillers under my eyes: is it ok & safe to add more HA despite my Tyndall shadows ? I prefer not to remove the older HA because I heard/read the procedure can make the skin a lot thinner ? Is this true ? 2/ does Tyndall mean HA is no longer evenly distributed ?