• 대한한의학회지
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• 제24권2호
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• pp.109-120
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• 2003

Objectives: This study was conducted to evaluate the clinical efficacy of EC102, a composition containing oriental medicine, for relieving VDT syndrome, including eye symptoms and musculo-skeletal symptoms. Methods: The study was conducted by using a double blind randomized controlled trial design. 40 subjects were randomly assigned to the placebo group or the EC102 group. The visual analogous scale (VAS) was used to evaluate various VDT symptoms, including eye pain, eye fatigue, back pain, shoulder pain and so on. Refractory indexes were measured using refractometer, and tear film break-up time (BUT) were measured using fluorescein strip. Blood circulation was measured using photo-plethysmography. Blood pressure and blood biochemistry were also measured. Statistical analysis was conducted by a Mann-Whitney test using SPSS 9.0 software. Results: The EC102 group showed a statistically significant reduction of eye symptoms including eye fatigue, eyelid fatigue, itching, pain, and photophobia when compared with the placebo group (P<0.05). The EC102 group also showed a statistically significant reduction of back pain compared with the placebo group (P<0.05). No side effects on liver function and blood biochemistry were observed. Conclusions: EC102 has significant clinical efficacy for relieving symptoms of VDT syndrome.

• 대한디지털의료영상학회논문지
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• 제5권1호
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• pp.138-149
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• 2002

During the period from may to June 2000, a questionnaire study was carried out on 65 male radiological technologist who had been engaged at VDT work, to find out correlation their symptoms to VDT syndrome factors, work environment and condition. The results were as follows : 1. The mean age was 41.0 years, the mean relay working time was 3.75 hours and the mean duration of using computer monitor was 5.9 years, the satisfactory of working was 44.6% the others 55.4%, among these, 3.1% had symptoms before using the VDT and the others had not. 2. The prevalence of symptoms was the highest on wholebody tired, followed by eye, neck, low back, in decreased order and the lowest was fatique of wrist. 3. There was not significant correlation of symptoms to age, but significant to working time, working duration. 4. There was not significant correlation of symptoms to satisfactory. 5. Working desk, monitor, illuminations, temperature, and noise were significantly related to symptoms. 6. There was significant relation of symptoms to CT, MRI workers.

• 한국환경교육학회지:환경교육
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• 제23권3호
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• pp.140-151
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• 2010

The purpose of this study was to develop the educational program using learning cartoons for the environmental health and to examine the educational potentials of it. The subjects were 4th grade students of an elementary school in Gyeonggi province. The topics of environmental health learning program were obesity, atopicallergy, VDT syndrome, sick house syndrome and eco-friendly living supplies. The environmental health knowledge of the experimental group was significantly higher than that of the control group(p<.01). Especially, the topics of VDT syndrome and sick house syndrome were effective(p<.01). Girls' environmental health knowledge about VDT syndrome was higher than that of boys(p<.05). The environmental health practice will of the experimental group was significantly higher than that of the control group(p<.01). The students of experimental group have significant higher practice will about VDT syndrome and sick house syndrome. Girls' environmental health practice will about obesity and eco-friendly living supplies were higher than boys' will. The results showed that the learning program using learning cartoons have effective educational potentials in the environmental health education.

• 디지털융복합연구
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• 제14권1호
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• pp.363-370
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• 2016

본 연구는 디지털기기 중독 위험군에 속하는 남자 중학생의 VDT증후군 자각증상 정도를 확인하고, 이에 영향을 미치는 요인을 파악하고자 하였다. 서술적 관계 조사연구로 디지털중독 위험군에 속하는 남자 중학생 169명을 대상으로 온라인 게임 중독, 스마트폰 사용 중독, VDT 증후군의 자각증상, 컴퓨터 사용 환경을 조사하였다. 결과적으로 디지털중독 위험군인 남자 중학생의 VDT 증후군 자각증상은 심리적 증상, 전신증상, 눈 증상, 근골격계 증상순으로 경험하는 것으로 분석되었다. 가장 다빈도 자각증상은 눈 관련 증상으로 눈의 피로감, 시력저하로 나타났다. VDT 증후군 자각증상의 영향요인은 스마트폰 사용 중독, 주중 컴퓨터 사용시간, 컴퓨터 사용 환경으로, 28.1%를 설명하였다. 본 연구는 디지털 중독에 대한 포괄적인 관점에서 건강문제를 탐색하고, 이에 영향을 미치는 요인을 예측해 보고자 시도된 연구로서 의의를 갖는다.

• 국제물리치료학회지
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• 제8권2호
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• pp.1168-1174
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• 2017

The purpose of this study was to investigate the health conditions of occupation group and hobby group related to visual display terminal (VDT) syndrome. The VDT occupation group was mainly composed of the worker in banks, telephone companies, and general offices. The VDT-related hobby group was composed of high school students, and Internet cafe users. A questionnaire survey was conducted to classify the subjects according to hours of computer usage. The results indicated that the occupation group represented a higher level of subjective symptoms than VDT-related hobby group. In the VDT occupation group, 'Poor body condition', 'Feeling uncomfortable or pain in the neck', 'Feeling uncomfortable or pain in the back', 'Feeling stressed out', and 'Feeling uncomfortable or pain in the shoulder' items indicated a high level of subjective symptoms. In the VDT-related hobby group, 'Feeling uncomfortable or pain in the neck', and 'Feeling uncomfortable or pain in the back' items indicated a high level of subjective symptoms. According to the hours of computer usage, 4-6 hours and 6 hours or more groups represented a higher level of subjective symptoms than 2-4 hours group. These findings suggest that Visual display terminal (VDT) work effects the individual's health conditions.

• 한국학교ㆍ지역보건교육학회지
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• 제9권2호
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• pp.65-80
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• 2008

Objectives: To identify the relationship between the internet addition of elementary school students, and their health behavior and VDT syndrome, and thereby to detect the impact of internet addiction on the health behavior of elementary school students, to get the basic information necessary to develop a prevention program for internet addiction and to plan for VDT syndrome prevention program. Methods: We conducted this study during the period from jun 27, 2007 through July 8, 2007. The subjects of this study were 416 children whose grades were in 4th through 6th grades of elementary schools located in the city A in Kyung Pook Providence. Data were obtained from self-rating questionnaires. The questionnaires were composed of Korean Internet Addiction Self-examination on Internet Use Patterns (K-scale), Health Behavior Profile, VDT Syndrome, and general characteristics. We used t-test, AVOVA with Ducan method for Post-hoc comparison in means comparison between groups, $X^2$-test for frequency analysis and Pearson's correlation coefficient. We used SPSS/PC(12.0 ver) program and the LISREL 8.53 Win program for covariance structural analysis. Results: Major results were as follows. 1. The internet addiction propensity distribution based on the distribution of scores were investigated according to the self diagnosis scale on internet addiction. 6.5% of them were high risk user group, 14.4% were potential risk users and 79.1% of them were common user groups. 2. Internet addictions by sex, internet use duration, frequency (days/week), time(hours/day), purpose, position, brightness of internet, attitude of parents and frequency of conversation of family members were statistically significant(p<0.01). 3. There was a statistically significant difference in VDT syndrome according to internet addiction groups(p<0.001) besides ocular symptoms, dry mouth and GI troubles. 4. The health behavior score was the lowest in high risk user group(p<0.001). There were significant differences between internet addiction groups in personal hygiene and habits of daily living(p<.002), the prevention of accidents(p<.002), the practice concerned with the prevention of infectious disease(p=.002), and mental health(p<.001). 5. There was also a significant negative correlation between internal addiction and health profile(r=-0.365, p<0.01) and a significant positive correlation between internal addiction and VDT syndrome(r=0.331, p<0.01). 6. As the result of structural model analysis, internet use time(/day), days of internet use(/1week), conversation frequency among family members, degree of brightness of internet use had significant direct effects on internet addiction. Conclusions: The results will help the development of an effective intervention program for the prevention and treatment of internal addiction by clarifying the effect of the internal addiction upon elementary school students' VDT syndrome and health behavior.

• 혜화의학회지
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• 제13권1호
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• pp.295-302
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• 2004

Nowadays VDT(Visual Display Termimal) syndrome-especially causes disorder of skeletalmuscular structure, ophthalmic organ, neuropsychiatic parts, etc.-are so common and many people are suffering from it. The purpose of this study is to investigate the clinical result of patients diagnosed as shoulder-arm syndrome by VDT work. This study carried out on 50 patients who have been treated at Cheonan Oriental hospital(Daejon University), February 2nd, 2003 to May 31th, 2004. The patients were classified into age, sex, the period between onset and visit, symptom, clinical diagnosis and so on. And the methods of treatment were acupuncture, herbal medication, oriental physical therapy, Chuna, etc. About treatment results, Exellant were 12(24.00%), Improve were 25(50.00%), Mild improve were 11(22.00%), Failure were 2(4.00%)

• Annals of Occupational and Environmental Medicine
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• 제35권
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• pp.1.1-1.11
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• 2023

Background: Although it is well known that the usage of visual display terminal (VDT) at the workplace causes computer vision syndrome (CVS), previous studies mainly focused on computer use and the health of white-collar workers. In this study, we explored the relationship between the usage of VDT including various devices, and symptoms related to CVS in a large population including pink-collar workers and blue-collar workers. Methods: 21,304 wage workers over the age of 20 years were analyzed from the 6th Korean Working Conditions Survey. To investigate the association between VDT use at work and symptoms related to CVS among wage workers, odds ratios (ORs) and 95% confidence interval (CI) were calculated by multivariate logistic regression models. Results: In the group with the highest VDT usage at work, the OR of headache/eyestrain was 2.16 (95% CI: 1.86-2.52). The OR of suspected CVS patients was significantly increased in the highest group of usage of VDT at work (OR: 1.69; 95% CI, 1.39-2.06). Compare with the reference group, the OR for headache/eyestrain in the highest group of VDT usage was 2.81 (95% CI: 2.13-3.70) in white-collar workers, 1.78 (95% CI: 1.32-2.40) in pink-collar workers, and 1.59 (95% CI: 1.18-2.15) in blue-collar workers. Conclusions: We observed a relationship in which the use of VDT in the workplace increases the risk of headache/eyestrain regardless of occupational classification. Our findings emphasize the importance of paying attention to the health of VDT workers and making plans to improve their working conditions.

• 한국융합학회논문지
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• 제12권11호
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• pp.135-142
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• 2021

본 연구는 스마트폰을 장시간 사용으로 VDT증후군(Visual Display Terminal Syndrome)을 가진 20대 성인들을 대상으로 체외충격파 치료(ESWT)를 통해 목-어깨의 근육의 복합적 통증지수에 미치는 영향을 알아보고자 한다. VDT증후군으로 목-어깨통증을 가지고 있는 대상자 20명을 무작위로 분류해서 실험군 10명과 대조군 10명으로 나눠서 실험에 참여하였다. 실험대상자들은 4주간, 주 5일간 실시하였다. 실험군은 1회 5 Hz, 2.0 bar의 강도로 체외충격파치료를 2000회씩 실시하였고, 대조군은 1회 30분간 자가신장운동을 실시하였다. 실험대상자들은 실험전과 실험후에 VAS와 PPT로 목-어깨통증을 측정하여 비교하였다. 자료분석은 SPSS win 18.0으로 실험전과 실험후에 실험군과 대조군의 결과값을 분석하기 위해 독립비교를 실시하였다. 실험 후 실험군이 목-어깨근육의 VAS, PPT에서 많이 감소하였다. 하지만 대조군은 큰 차이가 없었다. 이런 결과를 통해 체외충격파 치료는 치료전보다 치료후에 통증감소가 나타났지만 자가신장운동은 치료후 통증감소의 차이가 없었다. 앞으로도 VDT증후군의 원인으로 목-어깨통증을 감소시킬 수 있는 다양한 치료법으로 이용될 것으로 사료된다.

• 대한물리치료과학회지
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• 제29권4호
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• pp.1-16
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• 2022

Background: This study was conducted to examine the correlation of VDT, posture and shoulder function among each group divided by according to the neck pain disorder index (NDI) scores for female patients with neck pain. Design: Cross-sectional study. Methods: Fifty adult women with neck pain voluntarily participated in this study and the neck pain disorder index questionnaire, VDT syndrome assessment tool questionnaire, craniovertebral angle, thoracic kyphosis angle, round shoulder posture, pectoralis minor length, shoulder joint hypermobility, and serratus anterior strength tests were conducted respectively. Subjects were divided into two groups where 21 subjects were allocated to the mild pain group whom have rated below 14 points on the NDI scores, and 29 subjects were in the severe pain group, whom have rated above 15 on the NDI score. Results: The study found that in the mean difference between variables in each group, VDT syndrome showed a higher mean score in the severe pain group than the mild pain group (p<0.05). In the group correlation and regression analysis, the mild pain group showed a significant negative correlation between the craniovertebral angle and round shoulder posture (r=-0.467, p<0.05), and the round shoulder posture for craniovertebral angle was shown to have significant positive influence (B=10.162, p<0.05). The severe pain group showed that the NDI and the VDT syndrome had a significant amount of correlation (r=0.520, p<0.01), the VDT syndrome showed significant positive influence (B=0.330, p<0.05), and the craniovertebral angle showed significant negative influence (B=-0.809, p<0.05). It was also shown that shoulder joint hypermobility had a significant negative correlation with the serratus anterior strength (r=-0.437, p<0.01), and that serratus anterior strength had a significant negative influence on shoulder joint hypermobility (B=-4.175, p<0.05). Conclusion: This study is of clinical significance in that it presented variables that should be considered depending on the degree of neck pain in treating patients with neck pain and that it presented patients with not only posture but also the function of the shoulder joint as factors to consider.