Strobing

Strobing is the perception of multiple copies of an image at the same time in VR. Strobing along with smearing is part of judder. These effects reduce the visual quality of a virtual reality display and cause simulator sickness. Strobing becomes more apparent when smearing is eliminated through the use of a low persistence display (smearing no longer hides strobing).

Strobing can be eliminated by increasing the refresh rate of the display.