Abstract
Purpose: :
A 3D active shutter TV viewing experiment was performed to investigate the influence on visual function in young people employing both objective and subjective methods.
Methods: :
10 healthy young people (age from 21 to 25 years with mean value of 23.20±1.25) have participated in this experiment.They were arranged to watch the 3D TV for 90 min. the ocular aligment and binocular visual function was evaluated both before and after 3D TV viewing. We have also established a range-adjustable measuring table composed of RSVP and Grand Seiko WAM-5500 infrared auto-refractor to evaluate the accommodative microfluctuation both before and after the study.In addition, subjective symptoms were surveyed employing a questionnaire after viewing to subjectively evaluate the visual fatigue.
Results: :
Accommodative microfluctuation tended to increase after viewing, but no significant difference was noted between the before and after viewing. And on binocular visual function, after viewing, the significant difference was found for the value of NRA and the break point of BO test decreased. Moreover, the scores of the subjective symptom questionnaire rose after viewing, significantly.
Conclusions: :
Under the conditions of the study, 3D TV viewing had an impact on visual function to some extent, and likely to cause visual fatigue and other uncomfortable sympotoms. But there are individual differences associated with, and many unkown problems, requiring further studies using 3D image viewing.
Keywords: accommodation • space and scene perception • quality of life