Stare-in-the-crowd effect evolved from a necessity for fast and accurate gaze perception for complex social interactions (Emery 2000). According to this model, an eye direction detector (EDD) mechanism - a neurocognitive system responsible for the rapid detection of eyes in the environment and their gaze direction – arose as a function of the geometry created by a dark circular iris relative to the white sclera (Baron-Cohen 1994). Specifically, it is contended that the increased ratio of exposed sclera in the eye outline of humans serves to enhance the velocity and acuity of gaze direction perception (Kobayashi and Kohshima 2001). Baron-Cohen, S. (1994)
Enucleation of the eye can fit comfortably in the pocket behind the eyelids overlying the conjunctiva that covers the orbital implant. The external portion of the ocular prosthesis is painted and finished to mimic a natural eye color, shape and luster. It can be removed and cleaned periodically by the individual or a care giver. The two part system of orbital implant and ocular prosthesis provides a stable, and well tolerated aesthetic restoration of the eye socket. Although vision is not restored by removal of the eye with placement of an orbital implant and ocular prosthesis, a natural appearance can result. The implant, along