Journal of The Korean Ophthalmological Society (대한안과학회지)

The Korean Ophthalmological Society (대한안과학회)
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The Objective Methods to Evaluate Ocular Fatigue Associated With Computer Work

컴퓨터 작업으로 인한 눈 피로의 객관적 평가 방법

  • Suh, Young-Woo (The Association for Research in Visual Function, Korea University College of Medicine) ;
  • Kim, Kyun-Hyung (The Association for Research in Visual Function, Korea University College of Medicine) ;
  • Kang, Su-Yeon (The Association for Research in Visual Function, Korea University College of Medicine) ;
  • Kim, Seoung-Woo (The Association for Research in Visual Function, Korea University College of Medicine) ;
  • Oh, Jae-Ryung (The Association for Research in Visual Function, Korea University College of Medicine) ;
  • Kim, Hyo-Myung (The Association for Research in Visual Function, Korea University College of Medicine) ;
  • Song, Jong-Suk (The Association for Research in Visual Function, Korea University College of Medicine)
  • 서영우 (고려대학교 시기능 연구회) ;
  • 김균형 (고려대학교 시기능 연구회) ;
  • 강수연 (고려대학교 시기능 연구회) ;
  • 김성우 (고려대학교 시기능 연구회) ;
  • 오재령 (고려대학교 시기능 연구회) ;
  • 김효명 (고려대학교 시기능 연구회) ;
  • 송종석 (고려대학교 시기능 연구회)
  • Received : 2010.05.07
  • Accepted : 2010.07.15
  • Published : 2010.10.15
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Abstract

Purpose: To develop methods for the objective measurement of ocular fatigue. Methods: Fifteen patients were enrolled in the present study. Subjects performed visual tasks on a computer for one hour. A survey of ocular fatigue was conducted with a questionnaire. Tear break-up time, blinking rate, ocular protection index, conjunctival injection, maximal blinking interval, temperature of the ocular surface, and visual evoked potential were evaluated before and immediately after the task. Surface electromyography of the orbicularis oculi muscle was performed before and during the task. Results: The survey showed increases in subjective ocular fatigue in all subjects. Tear break-up time, ocular protection index and maximal blinking interval decreased, while temperature of the ocular surface increased after the task. Conjunctival injection showed a tendency to increase. Electromyography, and visual evoked potential did not change significantly. Conclusions: In the present study, tear break-up time, ocular protection index, maximal blinking interval, and temperature of the ocular surface changed as ocular fatigue increased. Therefore, these measures can be objectively used for the evaluation of ocular fatigue.

목적: 눈 피로를 객관적으로 평가할 수 있는 방법에 대해 알아보고자 한다. 대상과 방법: 건강한 성인 15명을 대상으로 정해진 컴퓨터 작업을 1시간 시행하여 눈 피로를 유발한 후 설문조사로 작업 전후 주관적인 눈 피로를 평가하였다. 객관적인 눈 피로 평가 방법은 눈물막 파괴시간, 눈보호지수, 결막 충혈도, 눈 깜빡임 없이 참을 수 있는 최대 시간, 안구표면온도, 폭주 및 개산 융합력, 시유발전위도를 작업 전과 직후에 비교 측정하였으며, 눈둘레근 표면근전도는 작업 전 5분간과 작업 동안 시행하여 변화를 분석하였다. 결과: 피검자 모두 작업 후 주관적인 눈 피로도 증가를 보였다. 작업 후 눈물막 파괴시간, 눈보호지수, 눈 깜빡임 없이 참을 수 있는 최대 시간이 유의하게 감소하였으며, 안구표면온도는 유의하게 증가하였다(P<0.05). 결론: 눈물막 파괴시간, 눈보호지수, 눈을 깜빡이지 않고 참을 수 있는 최대 시간, 안구표면온도가 눈 피로를 객관적으로 평가하는 데 사용될 수 있겠다.

Keywords

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