• Title/Summary/Keyword: VISUAL EFFECT

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The Effect of Environmental Factors upon Children's Visual Acuity (어린이 시력과 생활 환경과의 관계에 관한 연구)

  • Kang, H.S.;Seo, Y.W.;Kang, I.S.
    • Journal of Korean Ophthalmic Optics Society
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    • v.2 no.1
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    • pp.77-83
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    • 1997
  • This study was carried out to investigate the effect of environmental factors on 380 children's unaided visual acuity and to determine the visual acuity and objective refraction error of these children. The unaided visual acuity and objective refraction error were measured by the TOPCON chart projector and refractometer on 147 kindergarteners and 233 primary school children ranging from age 5 to 12. The measurement on the unaided visual acuity of children were 3% for below the 0.1 visual acuity 9% for 0.1~0.4. 18% for 0.5~0.7. 16% for 0.8~0.9. and 54% for over 1.0 visual acuity respectively. The refractive errors were 9.35% for mixed astigmatism. 14.5% for hyperopia 75.88% for myopia. and 0.27% for emmetropia. respectively. When analyzing the environmental factors. the relationship between the children's visual acuity and the number of hours the children watched TV. the more hours they watched TV. the more the children lost their visual acuity. The visual acuity of children decreased abruptly in the groups that watched TV more than 4 hour a day. When comparing the relationship between the children's visual acuity and proximity to the TV, the further away from the TV they were the higher visual acuity. There is rna relation between the children's visual acuity and the studying hour or reading hour of children. The relationship between the children's visual acuity and their dwelling environment, the visual acuity of children who lived in an independent house were better than the visual acuity of children who dwelled in an apartment.

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A Study on the Visual Evaluation about Silhouete Image -Based on X-line- (실루엣 이미지의 시각적 평가에 관한 연구 -X-line의 변화를 중심으로-)

  • 이은령;이경희
    • Journal of the Korean Society of Clothing and Textiles
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    • v.20 no.4
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    • pp.631-646
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    • 1996
  • The purpose of this study was to investigate the difference of visual evaluation about silhouette image. The specific objective were; 1) to construct of silhouette image evaluation instrument using semantic differential scale for the purpose of measuring the width and length; 2) to identify the factor structure of the silhouette; 3) to test the difference of visual perception to the silhouette as the variation of width; 4) to test the difference of visual perception to the silhouette as the variation of length; 5) to test interaction effect between width and length. The major finding were; For the visual evaluation of silhouette as shoulder width variatiorl, there were significant difference in hardness and softness factor. For the hard and soft image, we should express by variation of the shoulder width. For the visual evaluation of silhouette as skirt width variation, there were significant difference in attention factor. For the attensive image, we should express by variation of the skirt width. For the visual evaluation of silhouette as skirt length variation, there were significant difference in activity factor. For the active image, we should express by variation of the skirt length.

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Acupuncture Treatment of a Child with Astigmatism and Visual Impairment (난시와 시력장애를 동반한 소아에 대한 침치료 1례 보고)

  • Heo, Jin;Jeong, Ju-Hyun;Lee, Byung-Ryul;Yang, Gi-Young;Kim, Young-Il
    • Journal of Acupuncture Research
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    • v.25 no.5
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    • pp.191-195
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    • 2008
  • Objectives : To estimate clinical effect of acupuncture treatment for astigmatism and visual impairment. Methods : Acupuncture treatment was performed on a young child, diagnosed as astigmatism and visual impairment from 23th May 2008 through 23th July 2008. Visual acuity and astigmatism were measured before and after treatment. Results : Visual acuity and astigmatism were improved after acupuncture treatment. Conclusions : This case demonstrates that acupuncture treatment has clinical possibilities for improving astigmatism and visual impairment and future studies will be required.

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Effect of Constituent Characteristics of Cotton Fabrics on the Visual Perception and Image Scale (면직물의 구성특성이 시지각에 미치는 영향과 이미지 스케일에 관한 연구)

  • 노의경;유효선
    • Journal of the Korean Society of Clothing and Textiles
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    • v.28 no.8
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    • pp.1142-1152
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    • 2004
  • The purpose of this study is to verify the visual perception on various cotton fabrics of the same color. Results obtained through subjective evaluation of cotton fabrics showed that the textural adjectives could be classified into 3; warm/cool, flexibility and surface property, the sensibility adjectives into 5; simple, attractive, masculine, conservative, comfortable and visual perception adjectives into 6; hard, warm, smooth, brilliant, classic and casual. Image distribution results on 12 different fabrics, showed different distributions among textiles on visual perception due to varying texture and sensibility. In thickness, weight, weave type, bending and surface characteristics which are structure characteristics, significant differences were shown for visual perception examination. Having placed into an image scale, visual perception dimension developed divided into the 'soft-hard' axis and the 'warm-cool' axis.

The Study on Trend of Domestic and Overseas Oriental Medical Research for Visual Impairment (시력장애에 관한 국내외 한의학적 임상 연구 경향 고찰)

  • Lee, Su-Kyung;Hong, Hyeon-Jin;Lee, Hyun-Bum;Lee, Chang-Won
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.31 no.3
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    • pp.84-96
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    • 2018
  • Objectives : This study is designed for trend analysis of oriental medicine treatment for visual impairment. Methods : Research studies related to objectives were gathered through OASIS, KTKP, PUBMED with keywords such as "visual impairment", "myopia", "hyperopia", "presbyopia", "astigmatism" and analyzed. Results : As a result of searching domestic and overseas research on oriental medical treatment for visual impairment, 7 domestic research papers and 11 overseas research papers have been selected. Among those research papers, 15 of those are studies related to childhood or juvenile myopia. Acupuncture, ear acupuncture, herb medicine, periocular massage, eye muscle exercise and habit correction are used as treatment methods for visual impairment. 14 out of 17 research papers which mentioned treatment effect of oriental medicine reported oriental treatment of visual impairment is effective. Conclusions : Various types of oriental medical treatment could be effective in treating visual impairment. Thus, related in-depth research must be proceeded.