Abstract: A method of quantifying the effect of peripheral optical errors on driving includes displaying, on a central portion of a display, a visual representation of a vehicle on a dynamic roadway; intermittently displaying a curve in the dynamic roadway; intermittently displaying, on a peripheral portion of the display, a target object; receiving a signal in response to a participant viewing the target object; determining a reaction time and determining target detection accuracy. Another method includes displaying a participant 10 vehicle and a lead vehicle in front of the participant vehicle on a roadway; signaling an alert when the participant vehicle is outside of a distance range to the lead vehicle; intermittently displaying, on a peripheral portion of the display, a target object; receiving a signal in response to a participant detecting the target; and quantifying the effect of the peripheral optical errors based on reaction time and target detection accuracy.

Abstract: A method of quantifying the effect of peripheral optical errors on patient locomotion includes projecting a pattern on the floor that includes a discrete shapes and empty spaces between the discrete shapes. The method also includes tracking a position of the participant along the pattern as the participant traverses the pattern, and determining foot placement accuracy, utilizing a optical motion capture system and a computer, as the participant walked through the pattern by determining a total area of overlap between the participant's feet and the empty spaces of the pattern. In another embodiment, the method includes arranging obstacles in front of a participant, intermittently displaying a character in front of the participant, determining participant's accuracy in identifying or counting the characters, and determining the participant's step length and foot clearance as the participant steps over the obstacles to quantify the effect of the peripheral optical errors on the participant's locomotion.

Abstract: A mold for the formation of plastic Luer nuts having a polygonal internal cross-section. The mold includes both movable and fixed cavity sections, so that a non-round threaded core can be unscrewed from within the Luer nut.

Abstract: A novel plastic mold and method is disclosed for forming a Luer nut which has a polygonal internal cross-section. The mold includes both movable and fixed cavity sections, so that a non-round threaded core can be unscrewed from within the Luer nut.

Abstract: A delivery device and method making use of a plunger which can be controllable reciprocated within a housing to regulate the amount of material expelled from the housing. The plunger includes an adjustable stop collar which can be adjustably positioned, preferably by depressing the sides of the collar. In addition, a piston within the housing is sealably releasable from the plunger.