title: Effect of virtual image projection distance on the accomodative response of the eye.
abstract: Virtual image displays utilize either aircraft-mounted or helmet-mounted beam splitters, or combining screens. The effect on the accomodative response of the projection distance of the virtual image was measured by photographing the first and fourth Purkinje images of a source. The results indicate possible effect on the accomodation response. Further exploration of the problem is indicated.
mesh_terms: D000065:Accommodation, Ocular; D000222:Adaptation, Physiological; D006801:Humans; D010775:Photic Stimulation; D014796:Visual Perception