垂直眼球運動の振巾について
1984 年 43 巻 1 号 p. 38-43
詳細
1984 年 43 巻 1 号 p. 38-43
The amplitude of the vertical saccades of 25 normal adults was studied by electronystagmography or by a computerized eye movement analysis system. A round target 1 cm in diameter moved with a visual angle of 10° or 20° or 30° and with circular movements or with vertical sinusoidal movements or with vertical saccades.
1. The amplitude of the vertical saccades increased as the visual angle widened from 10°to 30° when the target movements were circular.
The amplitude of the verical saccades with vertical sinusoidal target movements or vertical saccadic movements decreased as the visual angle increased to 20°or 30°.
2. The amplitude of vertical eye movements varied most when saccadic target movements were used and was steadiest when the target moved vertically sinusoidally or circularly clockwise.
3. Vertical eye movements movements should be calibrated with a visual angle of 20°or 30°and circular target movements.
