Abstract
We analyzed and compared the visual accommodation of kindergarten children who were gazing fixedly at images from three different sources: Nintendo Game Boy DMG-01TM (non-backlit type game console: NBGC), NEC PC EnginePI-TG6TM (color backlit-type game console: CBGC) and a cartoon drawing (drawing). Subjects for the experiment were 13 4- to 5-year-old kindergarten children. The contrast ratios were, in the order, 1.1 (NBGC), 3.1 (drawing), and 3.4 (CBGC). These values show that the contrast of the NBGC screen was considerably lower than the others. The mean accommodative power increased when looking at all three types of image: a drawing (1.75±0.52 D; mean±S.D.), CBGC (1.82±0.61 D), and NBGC (2.26±0.50 D). Compared with the other 2 targets, NBGC required stronger accommodation, indicating that the legibility of the NBGC was poor. Repeated measures ANOVA was used for the values of accommodation for each type of target. There were significant differences among the 3 targets (p<0.01). Significant differences were seen between NBGC and drawings (p<0.01) and NBGC and CBGC (p<0.05) using paired Scheffe test, but not between CBGC and drawings. This supports the finding that the legibility of NBGC is low due to dark and low contrast screens with poor resolution.
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References
Rushton DN. “Space invader” epilepsy. Lancet 1981; 1(8218): 501.
Jeavons PM, Barton ME, Bishop A. Seizures and hand-held space invaders. Lancet 1981; 2(8249): 758.
Maeda Y, Kurokawa T, Sakamoto K, Kitamoto I, Ueda K, Takasima S. Electroclinical study of video-game epilepsy. Dev. Med. Child Neurol. 1990; 32: 493–500.
Graham F, Harding A. TV can be bad for your health. Nature Medicine 1998; 4: 265–267.
Griffiths M. Amusement machine playing in childhood and adolescence. J. Adolese. 1991; 14: 53–73.
Knave B. IT in schools. Proceedings of WWDU '97 Tokyo. 1997; pp. 107.
Miyao M, Sugiura S, Sakata T, Ishigaki H. The visual effect of video game on school children. Proceedings of WWDU '97 Tokyo. 1997; 111.
Miyao M, Otake Y, Ishihara S. A newly developed device to measure objective amplitude of accommodation and papillary response in both binocular and natural viewing conditions. Jpn. J. Ind. Health. 1992; 34: 148–149.
Deutches Institut fur Normung, DIN 5035, Innenraumbeleuchtung mit Kunstlichen Licht, DIN Berlin, 1978.
Gandjean E. Fitting the Task to the Man. London: Taylor and Francis, Ltd. 1988.
Gandjean E. Ergonomics in Computerized Offices. London: Taylor and Francis, Ltd. 1987.
Mourant RR, Lakshmanan R, Chantadisai R. Visual fatigue and cathode ray tube display terminals. Hum. Factors 1981; 23: 529–540.
Shurtleff D. How to Make Displays Legible. La Mirada, CA: Human Interface Design, 1980.
Kokoschka S, Bodmann HW. Untersuchungen zum Beleuchtungs-niveau und Zeichenkontrast am Bildschirmarbeitsplaz. Lichttechnik 1978; 30: 395–399.
Snyder HL, Maddox ME. On the image quality of dotmatrix display. Proceedings of the SID 1980; 21: 3–7.
Snyder HL. Lighting, glare measurement and legibility of VDT In: E. Grandjean, editor. Ergonomics and Health in Modern Offices. London; Taylor & Francis, 1984: 295–304.
Miyao M, Ishihara S, Furuta M, Kondo T, Sakakibara H, Kashiwamata M, Yamada S. Comparison of readability between liquid crystal displays and cathode-ray tubes. Jpn. J. Hyg. 1993; 48: 746–751.
Gwiazda J, Thorn F, Bauer J, Held R. Myopic children show insufficient accommodative response to blur. Invest. Ophthalmol. Vis. Sci. 1993; 34(3): 690–694.
Gwiazda J, Bauer J, Thorn F, Held R. A dynamic relationship between myopia and blur-driven accommodation in school-aged children. Vision Res. 1995; 35: 1299–1304.
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Sakata, T., Miyao, M., Ishigaki, H. et al. Accommodative load from handheld game consoles in kindergarten children. Environ Health Prev Med 6, 109–112 (2001). https://doi.org/10.1007/BF02897955
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DOI: https://doi.org/10.1007/BF02897955