Sir, it seems that there is a THS indicator (visual), if one looks down at the trim wheels next to the throttle quadrants. My diagram (old) does not have enough fidelity to tell me how the wheels are marked.
http://avionique.free.fr/IMG/jpg/Cockpit_A330.jpg
That picture (if it is a faithful rendering of an A330 cockpit) shows me what looks to be an index, and large white blob (??) and what may be a scale in green.
Also recall in numerous threads comments about AB pilots needing to set the trim wheel to a particular value for takeoff (probably varies with gross weight??) So they'd need to be able to read the trim wheel's position to confirm their nose trim is at the value they calculated and require for takeoff.