THE EFFECT OF TRANSIENT WEIGHTLESSNESS ON VISUAL ACUITY

Abstract

Visual acuity was measured on subjects while they were exposed to short periods of weightlessness aboard an aircraft flown through zero-g trajectories involving transition from 1 g to 2-1/2 g to zero g. Monocular and binocular acuity of near and far vision were measured on both Snellen and checkerboard targets. Control measurements were made on the ground and inflight at 1 g in counter-balanced sequence with the zero-g measurements. Results show that the weightless environment produced for this study has a detrimental effect on visual acuity as measured. The decrement is not considered to have practical significance. (Author)

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1961
Accession Number
AD0261906

Entities

People

  • Leroy D. Pigg
  • William N. Kama

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Binoculars
  • Environment
  • Inflight
  • Measurement
  • Sequences
  • Trajectories
  • Transitions
  • Visual Acuity
  • Weightlessness

Readers

  • Aviation Science / Aeronautics.
  • Brain and Cognitive Science; Experimental Psychology; Cognitive Neuroscience
  • Vision Science/Vision Psychology/Cognitive Neuroscience.