Honestly I think theres something wrong with me. Went to grab a screenshot to post an image and they're round hoplite shields. Literally have no idea what made me think they were rectangular. Thanks anyway though Jub. This isn't vision related though, went to the opticians last week and once again came out with perfect scores. Probably something to do with playing at 1am.
EDIT: Ah then again I just installed Radious complete overhaul. That may also have done it.