Visual Survey of Infantry Troops. Part 1. Visual Acuity, Refractive Status, Interpupillary Distance and Visual Skills

摘要

The primary objective of the study was to establish a database characterizing the current visual status of infantrymen. Individuals selected as participants for this study were active duty personnel undergoing training to receive Military Occupational Speciality (MOS) 11B20, Infantryman. The visual survey test battery included measurements of visual acuity (high and low contrast),refractive error, interpupillary distance, color vision, distance lateral phoria, stereopsis, contrast sensitivity, isoluminance resolution, and sighting dominance. This report presents data collected from the following test/measurements: High contrast visual acuity, refractive error, interpupillary distance, depth perception, distance lateral phoria, and color vision. Of the 828 participants, 95.6 percent rated an E-1 (highest classification) in the vision category of the physical profile serial. Among entry-level infantrymen, 33 percent were spectacle wearers. Distributions of the various visual parameters are presented for the test population and for selected subpopulations. Implications for selection/retention standards and for equipment design are discussed. Keywords: Visual acuity; Refractive error; Interpupillary distance; Color vision; Phoria; Stereopsis. (KT)