This is an issue that has surfaced with the recent expansion that introduced new citadel interior graphics. I has the same problem and sent a bug report to CCP. You can see the whole thing here:
TL;DR from CCP is “something, something AMD legacy drivers”
The issues seems related to medium quality shaders and their interaction with antialiasing. The solution for me has been to turn antialiasing off. You can se additional details in the thread I linked above.