Taiwan implemented mandatory motorcycle helmet legislation since June, 1997. This study investigate the difference in visual field between helmeted and unhelmeted motorcyclists. Subjectively, all felt obvious visual field constriction after helmet use, and the result revealed visual field constriction at any meridian except temporal horizontal meridian.
Taiwan implemented mandatory motorcycle helmet legislation since June, 1997. This study investigate the difference in visual field between helmeted and unhelmeted motorcyclists. Subjectively, all felt obvious visual field constriction after helmet use, and the result revealed visual field constriction at any meridian except temporal horizontal meridian.