1. A head-mounted eye tracking assembly for tracking movement of at least one eye of an operator, said eye tracking assembly comprising: a visor having an arcuate shape including a concave surface and an opposed convex surface, wherein said visor is capable of being disposed such that the at least one eye is located proximate the concave surface, wherein said visor is at least partially reflective such that said visor is capable of reflecting an image of the at least one eye, and wherein said visor is capable of being disposed such that at least a portion of said visor is located outside a field of view of the operator; and a camera disposed proximate the concave surface of said visor, wherein said camera is capable of tracking movement of the at least one eye based upon the image of the at least one eye reflected by said visor.