Journal of Korean Ophthalmic Optics Society (한국안광학회지)

The Korean Ophthalmic Optics Society (한국안광학회)
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Change of Binocular Vision Induced by Longitudinal Chromatic Aberration during Near Work

근거리 작업 시 종색수차에 따른 양안시의 변화

  • Kim, Se-il (Dep. of Optometry, Seoul National University of Science and Technology) ;
  • Park, Mijung (Dep. of Optometry, Seoul National University of Science and Technology) ;
  • Kim, So Ra (Dep. of Optometry, Seoul National University of Science and Technology)
  • 김세일 (서울과학기술대학교 안경광학과) ;
  • 박미정 (서울과학기술대학교 안경광학과) ;
  • 김소라 (서울과학기술대학교 안경광학과)
  • Received : 2015.04.29
  • Accepted : 2015.05.27
  • Published : 2015.06.30
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Abstract

Purpose: The current study was performed to compare the difference in binocular visual function depending on variable background colors at near work. Method: Fifty four adults (18 males, 34 females) who consented to the present study and had no ocular disease, ocular surgery history, strabismus and amblyopia with normal binocular vision were participated into this study. The subjects were asked to read the novels with black letter printed on white, red, green and blue background for 15 min. Then, their heterophoria, AC/A ratio, near point of convergence, accommodation facility, relative accommodation and vergence were measured before and after reading. The difference of measurements were compared. Result: Overall heterophoria was tended to decrease with regardless of background color. AC/A ratio showed a tendency of increase after reading the novels with all backgrounds except white background. Near point of convergence was significantly increased compared to before reading at all background color. Accommodative facility of dominant and non-dominant eyes were also significantly increased after reading however, binocular accommodative facility showed a tendency of decrease. Negative relative accommodation also decreased at all background colors however, the change of positive relative accommodation was not significantly different. In case of vergence, there was significant difference in break point of far BO and recovery point of far BI by the wavelength of background color. Conclusions: From the results, it was known there is convergence change depending on the wavelength of light even though same amount of accommodation and convergence is required when doing near work for certain period. Thus, it can be suggested that the adjustment of the near working environment which perception of various color was required, should be conducted according to the main wavelength.

목적: 본 연구에서는 근업 시 바탕색의 차이에 따른 시기능의 차이를 비교하고자 하였다. 방법: 본 연구에 동의하며 안질환 및 안과적 수술경험이 없고 사시, 약시가 없는 양안시가 가능한 성인 54명(남18, 여34)을 대상으로 흰색, 적색, 녹색 및 청색의 바탕에 검은색 글씨로 구성된 소설을 각각 15분 동안 읽게 한 후 사위도, AC/A비, 폭주근점, 조절용이성, 상대조절 및 융합력을 측정한 후 근거리 작업 전후 차이를 비교하였다. 결과: 사위도는 바탕색에 관계없이 독서 전과 비교하여 전체적으로 감소하는 경향을 나타내었으며, AC/A비는 백색 바탕색을 제외한 다른 바탕색의 책을 읽은 후에는 증가하는 경향을 나타내었다. 폭주근점은 바탕색별로 모두 독서 전과 비교하여 유의한 증가를 보였다. 우위안 및 비우위안의 조절용이성은 독서 후 모두 유의한 증가를 나타내었지만 양안조절용이성의 경우는 감소하는 경향을 나타내었다. 음성상대조절은 모든 바탕색에서 유의한 감소를 보였으나 양성상대조절의 변화는 유의하지 않았다. 융합력의 경우 바탕색의 각 파장별 원거리 BO 분리점과 원거리 BO 회복점에서 유의한 변화를 나타내었다. 결론: 본 연구를 통하여 일정시간의 근업 시 동일한 조절과 폭주량이 요구됨에도 불구하고 빛의 파장에 따라 폭주의 변화가 나타남을 알 수 있었으므로 다양한 색채인지를 요구하는 근거리 작업 시에는 주가 되는 파장에 따라 작업환경의 조정이 이루어져야 함을 제안할 수 있다.

Keywords

References

  1. Flitcroft DI. A neural and computational model for the chromatic control of accommodation. Vis Neurosci. 1990;5(6):547-555. https://doi.org/10.1017/S0952523800000705
  2. Schor CM, Kotulak JC. Dynamic interactions between accommodation and convergence are velocity sensitive. Vision Res. 1986;26(6):927-942. https://doi.org/10.1016/0042-6989(86)90151-3
  3. Chase C, Dougherty RF, Ray N, Fowler S, Stein J. L/M speed-matching ratio predicts reading in children. Optom Vis Sci. 2007;84(3):229-236. https://doi.org/10.1097/OPX.0b013e31803399df
  4. Hayes JR, Sheedy JE, Stelmack JA, Heaney CA. Computer use, symptoms, and quality of life. Optom Vis Sci. 2007;84(8):738-744.
  5. Borsting E, Chase C, Tosha C, Ridder WH 3rd. Longitudinal study of visual discomfort symptoms in college students. Optom Vis Sci. 2008;85(10):992-998. https://doi.org/10.1097/OPX.0b013e31818883cd
  6. Schor CM, Kotulak JC. Dynamic interactions between accommodation and convergence are velocity sensitive. Vision Res. 1986;26(6):927-942. https://doi.org/10.1016/0042-6989(86)90151-3
  7. Drew SA, Borsting E, Stark LR, Chase C. Chromatic aberration, accommodation, and color preference in asthenopia. Optom Vis Sci. 2012;89(7):E1059-E1067. https://doi.org/10.1097/OPX.0b013e31825da2f7
  8. Evans BJ, Patel R, Wilkins AJ. Optometric function in visually sensitive migraine before and after treatment with tinted spectacles. Ophthalmic Physiol Opt. 2002;22(2): 130-142. https://doi.org/10.1046/j.1475-1313.2002.00017.x
  9. Lightstone A, Lightstone T, Wilkins A. Both coloured overlays and coloured lenses can improve reading fluency, but their optimal chromaticities differ. Ophthalmic Physiol Opt. 1999;19(4):279-285. https://doi.org/10.1046/j.1475-1313.1999.00442.x
  10. Wilkins A. Coloured overlays and their effects on reading speed: a review. Ophthalmic Physiol Opt. 2002;22(5):448-454. https://doi.org/10.1046/j.1475-1313.2002.00079.x
  11. Northway N. Predicting the continued use of overlays in school children-a comparison of the developmental eye movement test and the rate of reading test. Ophthalmic Physiol Opt. 2003;23(5):457-464. https://doi.org/10.1046/j.1475-1313.2003.00144.x
  12. Ray NJ, Fowler S, Stein JF. Yellow filters can improve magnocellular function: motion sensitivity, convergence, accommodation, and reading. Ann NY Acad Sci 2005;1039(1):283-293. https://doi.org/10.1196/annals.1325.027
  13. Singleton C, Trotter S. Visual stress in adults with and without dyslexia. J Res Read. 2005;28(3):365-378. https://doi.org/10.1111/j.1467-9817.2005.00275.x
  14. An OH. Living color design, 1st Ed. Seoul: Hyungseul Publishing, 1997;45-47.
  15. Schor CM, Kotulak JC. Dynamic interactions between accommodation and convergence are velocity sensitive. Vision Res. 1986;26(6):927-942. https://doi.org/10.1016/0042-6989(86)90151-3
  16. Benjamin WJ. Borish's clinical refraction, 2nd Ed. St. Louis: Butterworth-Heinemann. 2006;395-913.
  17. Scheiman M, Wick B. Clinical management of binocular vision: heterophoric, accommodative, and eye movement disorders, 4th Ed. China: Lippincott Williams & Wilkins, 2014;9-11.
  18. Scheiman M, Wick B. Clinical management of binocular vision: heterophoric, accommodative, and eye movement disorders, 4th Ed. China: Lippincott Williams & Wilkins, 2014;58-60.
  19. Kozulin P, Ames SL, McBrien NA. Effects of a headmounted display on the oculomotor system of children. Optom Vis Sci. 2009;86(7):845-856. https://doi.org/10.1097/OPX.0b013e3181adff42
  20. Owens DA, Alfred, Wolf-Kelly K. Near work, visual fatigue, and variations of oculomotor tonus. Invest Ophthalmol Vis Sci. 1987;28(4):743-749.
  21. Gratton I, Piccoli B, Zaniboni A, Meroni M, Grieco A. Change in visual function and viewing distance during work with VDTs. Ergonomics. 1990;33(12):1433-1441. https://doi.org/10.1080/00140139008925344
  22. Borsting E, Chase C, Tosha C, Ridder III WH. Longitudinal study of visual discomfort symptoms in college students. Optom Vis Sci. 2008;85(10):992-998. https://doi.org/10.1097/OPX.0b013e31818883cd
  23. Horwood A, Toor S. Clinical test responses to different orthoptic exercise regimes in typical young adults. Ophthalmic Physiol Opt. 2014;34(2):250-262. https://doi.org/10.1111/opo.12109
  24. Robinson GL, Conway RN. Irlen lenses and adults: a small scale study of reading speed, accuracy, comprehension and self-image. Aust J Learn Disabil. 2000;5(1):4-13.
  25. Cacho Martnez P, Garca Muoz A, Ruiz-Cantero MT. Treatment of accommodative and nonstrabismic binocular dysfunctions: A systematic review. Optometry. 2009;80(12):702-716. https://doi.org/10.1016/j.optm.2009.06.011
  26. Ciuffreda KJ. The scientific basis for and efficacy of optometric vision therapy in nonstrabismic accommodative and vergence disorders. Optometry. 2002;73(12):735-762.

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