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스마트폰의 사용으로 인한 조절 변화에 따른 안정피로도에 대한 연구

A Study on the Stability Fatigue according to the Accommodation Change due to the Use of Smartphone

  • 김봉환 (춘해보건대학교 안경광학과) ;
  • 한선희 (춘해보건대학교 안경광학과) ;
  • 박선미 (춘해보건대학교 안경광학과) ;
  • 배상빈 (춘해보건대학교 안경광학과) ;
  • 우용준 (춘해보건대학교 안경광학과) ;
  • 송경준 (춘해보건대학교 안경광학과) ;
  • 방은민 (춘해보건대학교 안경광학과) ;
  • 서다은 (춘해보건대학교 안경광학과)
  • Kim, Bong-Hwan (Department of Optometry, Choonhae College of Health Sciences) ;
  • Han, Sun-Hee (Department of Optometry, Choonhae College of Health Sciences) ;
  • Park, Seon-Mi (Department of Optometry, Choonhae College of Health Sciences) ;
  • Bae, Sang-Bin (Department of Optometry, Choonhae College of Health Sciences) ;
  • Woo, Yong-Jun (Department of Optometry, Choonhae College of Health Sciences) ;
  • Song, Gyeong-Jun (Department of Optometry, Choonhae College of Health Sciences) ;
  • Bang, Eun-Min (Department of Optometry, Choonhae College of Health Sciences) ;
  • Seo, Da-Eun (Department of Optometry, Choonhae College of Health Sciences)
  • 투고 : 2020.02.19
  • 심사 : 2020.03.23
  • 발행 : 2020.06.30

초록

Purpose. In this study, The change of the accommodation function due to the use of a smartphone was objectively evaluated using an Auto Refractokeratometer and was to investigate the effect of accommodation response and microfluctuations of accommodation on stable fatigue. Methods. Twenty subjects (20 males, 20 females) who had no abnormalities in ophthalmic disease and strabismus, diplopia, suppression, convergence and ocular movement, and corrected visual acuity and unaided visual acuity of 0.8 or more were performed. The average age of the participants is (21.78 ± 1.78) years old. The refractive power of the eye was measured using an Auto Refractokeratometer (Speedy-i K-model, Righton Mfg Co. Tokyo Japan), and the equivalent spherical power was automatically calculated from the measured refractive power. The accommodation response amount was calculated for the accommodation stimulation amount in 8 steps in 0.5D increments from + 0.50D to -3.00D in the calculated equivalent spherical power. The microfluctuations of accommodation in the high frequency region was calculated according to the change in the amount of the accommodation stimulus. At this time, the spectral power of the microfluctuations of accommodation was analyzed by Fast Fourier Transformation (FFT). Results. After using the smartphone, it was found that the accommodation response to accommodation stimulation decreased and the microfluctuations of accommodation increased. Conclusions. It can be said that the use of a smartphone affects the accommodation response and the microfluctuations of accommodation, thereby causing a accommodative stable fatigue. Therefore, it is thought that the use of a smartphone for a long time may bring about a change in the accommodation function.

키워드

참고문헌

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