Imperceptible Automatic Field-of-View Restrictors to Combat VR Sickness and Cybersickness

The present disclosure provides an eye-tracked field of view restrictor for a virtual reality, augmented reality, and/or mixed reality system that reduces the effects of virtual reality sickness and/or cybersickness. A field of view restrictor with a soft-edge, hard edge, or arbitrary dynamic aperture is utilized, and the aperture is adjusted to increase and/or decrease the perceived field of view in the augmented reality, virtual reality, and/or mixed reality system. Each field of view restrictor moves in response to the movement of an operator's eyes as tracked by an eye tracking system, such that the eye-tracker can direct the positioning, repositioning, and/or reorientation of the field of view restrictors. The adjustments can be imperceptible to the operator.