Journal of The Korean Ophthalmological Society (대한안과학회지)

The Korean Ophthalmological Society (대한안과학회)
권호 표지

The Influence of Type of Computer and VDT Work on the Dryness of Eye

컴퓨터기종과 VDT작업종류가 안구건조에 미치는 영향

Cho, Yoon-Ae;Shin, Jae-Yong
조윤애;신재용

  • Published : 20021100
⟨ Previous Next ⟩

Abstract

Purpose : This study was performed in order to discover the influence of the different types of computer and VDT work on the dryness of eyes. Methods: Forty people without eye disease were included in this study. The frequency of blinking, BUT and width of palpebral fissure were measured after working on documents with desktop computers and laptop (notebook) computers and playing computer games at PC-room for 30 minutes each. Results: The BUT value was 7.0${\pm}$2.52 seconds after working on document with laptop computers and 5.7${\pm}$1.86 seconds with desktop computers. Whereas the frequency of blinking was almost the same, the width of palpebral fissure was 6.6${\pm}$0.95mm in the former and 7.7${\pm}$1.07 mm in the latter. After playing computer games at PC-room for 30 minutes, the BUT was as low as 4.6${\pm}$1.6l seconds. The frequency of blinking was as low as 7.7 ${\pm}$2.52 times/minute, and width of palpebral fissure as high as 9.2${\pm}$1.24 mm. Conclusions: The highest value of palpebral fissure and the lowest value of BUT were obtained after playing computer games at PC room. These results indicate that the most severe dryness of eyes results from playing computer games at PC room and leads to eye fatigue easily. This was followed in the order of severe dryness by working on documents with desktop computers and laptop (notebook) computers. Therefore, proper rest during computer work, use of artificial tears and improved environment of the VDT working room are required.

목적 : 컴퓨터기종과 VDT 작업종류가 안구건조에 미치는 영향을 알고자 함이다. 대상과 방법 : 정상인 40명을 대상으로 데스크탑컴퓨터와 노트북을 사용해 일반문서작업을 하게 하고, PC방에서 컴퓨터게임을 하게 했다. 각각 30분 작업 후 눈깜박임횟수, 눈을막파괴시간(BUT) 및 안검열높이를 측정해 안구건조를 평가하였다. 결과 : 평균 BUT값은 일반문서작업에서 노트북과 데스크탑컴퓨터를 사용했을 때 각각 7.0${\pm}$2.52초와 5.7${\pm}$1.86초로 후자에서 낮았다. 안검열높이는 각각 6.6${\pm}$0.95 mm와 7.7${\pm}$1.07 mm였으며 눈깜박임횟수는 차이가 없었다. PC방에서 데스크탑검퓨터로 게임할 때의 snsRKaqkrdlaghlt수는 7.7${\pm}$2.52회/분으로 일반문서작업 때의 13.9${\pm}$3.52회/분보다 적었으며, BUT값고 5.7${\pm}$1.86초에서 4.6${\pm}$1.61초로 감소하였다. 안검열높이 또한 9.2${\pm}$1.24 mm로 일반문서작업 때의 7.7${\pm}$1.07 mm보다 증가해 안구건조가 심하게 유발되었다. 결론 : PC방에서 게임을 할 때 가장 심한 안구건조를 유발해 심한 눈의 피로를 조장하였고, 데스크탑컴퓨터, 노트북작업의 순으로 안구건조가 줄어들었다. 그러므로, PC방에서 컴퓨터게임을 할 때에는 적절한 휴식, 인공눈물의 사용 및 작업환경의 개선이 요구된다.

Keywords

References

  1. Dainoff MJ, Happ A, Crane P. Visual fatigue and occupational stress in VDT operators. Hum Factors 1981;23:421-38. https://doi.org/10.1177/001872088102300405
  2. Collins MJ, Brown B, Bownan KJ, et al. Task variables and visual discomfort associated with the use of VDT' s. Optom vis sci 1991;18:27-33.
  3. Hikichi T, Yoshida A, Fukui Y, et al. Prevalence of dry eye in japanese eye center. Graefe Arch Clin Exp Ophthalmol 1995;233:555-8. https://doi.org/10.1007/BF00404705
  4. 조윤애, 안기정, 원종상. VDT작업이 안구건조에 미치는 영향. 한안지 1996;37:1991-5.
  5. Toda I, Fujishima H, Tsudota K. Ocular fatigue is the major symptom of dry eye. Acta Ophthalmol 1993;71:347-52. https://doi.org/10.1111/j.1755-3768.1993.tb07146.x
  6. Daum KM, Good G, Tijerina L. Symptoms in video display terminal operators and the presence of small refactive errors. J Am Optom Assoc 1988;93:28-34.
  7. Sheedy JE. Vision problems at video display terminals. Survay of optometrists. J Am Optom Assoc 1989;63:687-92.
  8. Ibi K, Saito S, Yaginuma K. Experimental studies on the influence of astigmatism on eye accommodation. Nippon Ganka Gakkai Zasshi 1989;93:28-34.
  9. Bergqvist UO, Knave B. Eye discomfort and work with visual display terminals. Scand J Work Environ Health 1994;20:27-33. https://doi.org/10.5271/sjweh.1432
  10. Smith MJ, Cohen BGF, Stammerjohn LW, et al. An investigation of health complains and job stress in video display operations. Human Factors 1981;23:421-38. https://doi.org/10.1177/001872088102300405
  11. Mourant RR, Lakshmanan F. Chantadisai R. Visual fatigue and cathode ray tube display terminals. Human Factors 1981;23:529-49.
  12. Knave BG, Wibom RI, Voss M, et al. Work with video display terminals among office employees. 1.Subjective symptoms and discomfort. Scan J Work Environ Health 1985;11:457-66.
  13. Goldman DS. VDTs and the visual stress syndrome. A continuing world wide problem. Southoon Mini Micro Southeast ConfRec 1985;5:191-5.
  14. 유진성, 윤정우, 김재호. VDT작업이 조절기능에 미치는 영향. 한안지 1992;33:693-7.
  15. 박창준, 유진성, 김재호. VDT작업자에서 휴식에 EKfms 조절기능의 변화. 한안지 1994;35:709-4.
  16. Nakaishi H, Yamada Y. Abnormal tear dynamics and symptoms of eyestrain in operators of visual display terminals. Occup Environ Med 1999;56:6-9. https://doi.org/10.1136/oem.56.1.6
  17. Yaginuma Y, Yamada H, Nagai H, et al. Study of the relationship between lacrimation and blink in VDT work. Ergonomics 1990;33:799-809. https://doi.org/10.1080/00140139008927186
  18. Patel S, Henderson R, Bradley L, et al. Effect of visual display unit use on blink rate and tear stability. Optom Vis Sci 1991;68:888-92. https://doi.org/10.1097/00006324-199111000-00010
  19. 김학철, 우창하, 김재찬, 신경환. 영상화면 단말기(VDT),작업자의 안기능 변화에 대한 연구. 한안지 1991;32:1137-44.
  20. Tsubota K. Tear dynamics and dry eye. Prog Retin Eye Res 1998;17:565-596. https://doi.org/10.1016/S1350-9462(98)00004-4
  21. Tsubota K, Nakamori K. Dry eye and video display terminals. N Engl J Med 1993;328: 584.
  22. Sotoyama M, Villanueva MB, Jonai H, et al. Ocular surface area as an informative index of visual ergnomics. Ind Health 1995;33:43-55.
  23. Tsubota K, Yamada M. Tear evaporation from the ocular surface. Invest Ophthalmol Vis Sci 1992;33:2942-50.
  24. Ascota MC, Gallar MC, Belmonte C. The influence of eye solutions on blinking and ocular comfort at rest and during work at video display terminals. Exp Eye Res 1999;68:663-9. https://doi.org/10.1006/exer.1998.0656
  25. 김장훈, 강기태, 조윤애. VDT 화면의 높낮이가 안구건조에 미치는 영향. 한안지 1997;38:1328-35.
  26. Sotoyama M, Jonai H, Saito S, et al. Analysis of ocular surface area for comfortable VDT workstation layout. Ergonomics 1996;39:877-84. https://doi.org/10.1080/00140139608964508
  27. Rolando M, Refojo MF, Kenyon KR. Increased tear evaporation in eyes with keratoconjunctivitis sicca. Arch OphthalmoI 1983;101:557-8. https://doi.org/10.1001/archopht.1983.01040010557003
  28. Wolska A, Switula M. Luminance of the surround and visual fatigue of VDT operators. Int J Occup Saf Ergon 1999:5:553-81.