Abstract: An artificial eye includes a generally spherically shaped container including a substantially hemispherical posterior portion, a substantially hemispherical anterior portion and a fastener for attaching the posterior portion to the anterior portion. The artificial eye includes functional counterparts to the anterior and posterior chambers of the human eye. Within these chambers are fluids which mimic the characteristics of the aqueous and vitreous humors in the human eye. Protective eyewear is tested by placing the eyewear between the artificial eye and a source of radiation. Radiation is directed through the protective eyewear and then through the artificial eye. The radiation is then received by a sensing device such as a charged couple device (CCD) camera or optometer. The resulting image is then evaluated.

Abstract: A variable focus adapter is disclosed that comprises the combination of a ns and an aperture provided by a plate all lodged in a housing that is placed so that the lens is in proximity with each objective lens of a binocular arrangement to change the focal range from greater than 20 ft. to seven (7) ft. with a depth of field spanning from 5 to 15 ft.