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Accommodative performance for chromatic displays
Author(s) -
Lovasik John V.,
Kergoat Hélène
Publication year - 1988
Publication title -
ophthalmic and physiological optics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.147
H-Index - 66
eISSN - 1475-1313
pISSN - 0275-5408
DOI - 10.1111/j.1475-1313.1988.tb01183.x
Subject(s) - chromatic scale , rgb color model , brightness , chromatic aberration , monochromatic color , optics , computer vision , computer science , artificial intelligence , achromatic lens , color vision , primary color , optometry , physics , medicine
Over the past few years. video display units (VDUs0 have been incorporated into many varieties of workplaces and ocupational demands. The success of electro‐optical displays in facilitating and improving job performance has spawned interest in extracting further advantage from VDUs by incorporating colour coding into such communication systems. However. concerns have been raised about the effect of chromatic stimuli on the visual comfort and task eficiency‐because of the chromatic aberration inherent in the opties of the human eys. In this study. We used a computer aided laser speckle optometer system to measure the accommodative responses to brightness‐matched chromatic letters displayed on a high‐resolution RGB monitor. Twenty‐responses to brightness‐matched chromatic letters displayed on a high‐resolution RGB monitor. Twenty‐visually normal. paid volunteers in a 22 35 year age category served as subjects. Stimuli were 14–21‐28 minutes of are letters presented in a monochromatic (white.red.green or blue. on a black background) or multichromatic blue red, blue green. red‐green, foreground background combinations) mode at 40 and 80 cm viewing distances. The results demonstrated that while the accommodative responses were strongly nfluenced by the foreground ‐back ground colour combination the group‐averaged dioptric difference across colours was relatively small. Further. accommodative responses were not guided in any systematic fashion by the size of latters presented for fixation. Imlications of these findings for display designs are discussed.