After a fairly short time, SCP-178-1 instances will appear. When worn, the player has a slight, stereoscopic discoloration in their view. SCP-178 can be found in its containment chamber. Any attempt by wearer or any other personnel to directly interact with the entities results in severe lacerations suddenly appearing on persons involved.
Entities reportedly exhibit docile and occasionally curious behavior, with one exception. When worn, the wear begins perceiving larger bipedal entities in addition to its ordinary surroundings.
The item exhibits no unusual physical properties apart from a slight discoloration of the cardboard consistent with age. SCP-178 is a pair of white stereoscopic ('3-D') glasses with a rectangular white cardboard frame and lenses of transparent blue and red (left and right lenses, respectively) plastic.