It turned out that their accommodative facility improved after they played both 2D and 3D games and more improved right after they played 3D game than 2D game. Likewise, their vergence facility was proved to improve after they played both 2D and 3D games and more improved soon after they played 3D game than 2D game. In addition, it was demonstrated that their accommodative facility improved to greater extent than their vergence facility. While studies have been so far conducted on the adverse effects of 3D contents, from the perspective of human factor, on the imbalance of visual accommodation and convergence, the present study is expected to broaden the applicable scope of 3D contents by utilizing the visual benefit of 3D contents for vision training.
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Jung-Ho Kim, Soon-Chul Kwon, Kwang-Chul Son, Seung-Hyun Lee, "Evaluation of vision training using 3D play game," Proc. SPIE 9391, Stereoscopic Displays and Applications XXVI, 939118 (17 March 2015);