|
KMID : 1011420170220020119
|
|
Journal of Korean Ophthalmic Optics Society
2017 Volume.22 No. 2 p.119 ~ p.126
|
|
|
Study of Change of Fatigue and Visual Function before and after Viewing 2D and 3D at Near Distance
|
|
Kang Hyun-Goo
Oh Soo-Jin
Kim Yeon-Jung
Hong Hyung-Ki
|
|
|
Abstract
|
|
|
Purpose: Change of the fatigue and the visual function after watching 2D and 3D movies at near distance in 3D notebook computer was analyzed using Simulator Sickness Questionnaire (SSQ) and the visual function test.
Methods: 15 subjects (8 male and 7 female) with the normal visual function, normal stereopsis with stereo visual acuity higher than 60 arc sec, uncorrected and corrected visual acuity of better than 1.0 (Participants who wear eyeglass or contact lens were excluded.), age range of 23~33 years (average age of 25.67±1.6 years) were selected as participants. Participants watched 2D or 3D movies for 90 minutes on 3D notebook of the diagonal size of 15.6 inch at the distance of 0.5 m. Before and at 30, 60, 90 minutes during watching movies, fatigues using SSQ and the visual functions (phoria at far and near, fusional vergence and accommodation ability) were measured and analyzed.
Results: In the fatigue survey between before and at 30 minutes during watching movies, there was no difference between 2D and 3D. However at 60 minutes, score of ‘difficulty concentrating’ was statistically significantly increased in viewing 3D (p = 0.036). At 90 minutes, scores of ‘difficulty concentrating’ (p = 0.011), ‘dizzy’ (p = 0.023), ‘stiff neck’ (p = 0.028), ‘sleepy’ (p = 0.030), ‘eyeache’ (p = 0.027), ‘vertigo’ (p = 0.014) were statistically significantly increased in viewing 3D. In visual function test, statistical significant change occurred at Accommodation facility, Near point of convergence, Amplitude of accommodation, but no abnormal change occurred.
Conclusions: Watching 3D until 30 minutes at near distance, there was no noticeable difference of fatigues compared with viewing 2D. However we need pay attention when we watch 3D more than 30 minutes.
|
|
|
KEYWORD
|
|
|
3D display, Near distance, Fatigue, Visual function
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|