電腦螢幕高低配置變換策略對於電腦操作員視覺疲勞的影響

Effects of the Ergonomic Intervention of Exchanging Monitor Position on VDT Users

吳水丕(Swei-Pi Wu) ； 蔡武晃(Wu-Huang Tsai)

《工作與休閒學刊》 2卷1期 (2010/09) Pp. 31-44

https://doi.org/10.6848/JWL.201009_2(1).0003

摘要

本研究旨在探討VDT工作站之螢幕調整高低之配置變換策略對於從事VDT作業時視覺疲勞的影響。共徵募16位受試者參與實驗，其中8位爲男性，8位爲女性。實驗作業爲文書資料輸入處理作業，實驗時間爲60分鐘。研究變項爲螢幕高度的變化，共包括九種螢幕配置變換策略（高到高、高到中、高到低、中到高、中到中、中到低、低到高、低到中、低到低），衡量效標則包括近點調節值(NPA)、閃光融合閾值(CFF)、以及視覺疲勞知覺評量。研究結果發現：(1)螢幕配置變換策略爲「低到低」和「低到中」時，其CFF下降程度較低；(2)VDT作業之視覺疲勞程度並不因性別之不同而有所差異；(3)由較高的螢幕配置調整爲較低的螢幕配置時，將能有效降低視覺負荷。

關鍵字

VDT工作站 ； 螢幕高度 ； 螢幕配置變換策略 ； 視覺疲勞

並列摘要

The aim of this study is to investigate the effects of the ergonomic intervention of exchanging monitor height position on VDT users. Subjects for this study consisted of 16 participants (8 males and 8 females). All participants will be taught to perform a data-entry task in 60 minutes with random order. One independent variable, including nine CRT monitor position schedules (high to high, high to middle, high to low, middle to high, middle to middle, middle to low, low to high, low to middle, low to low) was evaluated. Criterion variables include near point accommodation (NPA), critical fusion frequency (CFF), subjective rating of visual. The results showed that: (1)The monitor position, from low level to low level and from low level to middle level, the decrease of the CFF measures is lower; (2)The gender had not a significant effect on the visual discomfort; (3) When the monitor position being adjusted from high level to low level, the visual stress decrease effectively.

並列關鍵字

VDT workstation ； Monitor height ； Adjustment monitor height schedule strategy ； Visual discomfort

參考文獻

王錦澤，1997，電腦工作人員職業傷害之探討-以南部三家醫院為例，高雄醫學院公共衛生研究所碩士論文。

陳明德，1997，螢幕文字/背景色彩組合與相關作業特性對視覺績效與視覺疲勞影響之研究，台灣工業技術學院管理技術研究所博士論文。

Aarås, A., Horgen, G., Bjørset, H., Ro, O., “Thoresen, M., 1998, “Musculoskeletal, visual and psychosocial stress in VDU operators before and after multidisciplinary ergonomic interventi-ons”, Applied Ergonomics, 29(5), 335-354.

Balci, R. and Aghazadeh, F., 2003, “The effect of work-rest schedules and type of task on the discomfort and performance of VDT users”, Ergonomics, 46, 455-465.

Bergqvist, U. O. and Knave, B. G., 1994, “Eye discomfort and work with visual display terminals”, Scand J Work Environ & Health, 20, 27-22.