Eyewear with translucent superior field of view

A system for improving visual display terminal operator performance in the presence of overhead environmental illumination comprising:

• a work station employing a visual display terminal having a luminescent display surface located a viewing distance from the eye of said operator;
• eyewear having a frame portion removably positioned before the said eyes of said operator;
• said frame portion having a centrally disposed bridge section and right and left temple pieces extending therefrom;
• said frame portion supporting clear optical regions dimensioned for intercepting lines of sight substantially only within the inferior field of view of said eyes of said operator;
• said frame portion supporting a translucent region having light diffusing characteristics intercepting and blocking lines of sight directed substantially upwardly from the forwardly looking mid pupillary position of said eyes within the superior field of view thereof;
• the extent of translucency of said translucent region being sufficient to substantially reduce the luminence value difference otherwise perceived by said subject between sad overhead illumination and illumination within said subject's inferior field of view;
• and
• said light diffusing characteristics being sufficient to average out flicker effects and providing a sufficient diffuse luminence effect to avoid a "blinder" feeling.