Horizontal and Vertical Vergence Training and Its Effect on Vergences and Fixation Disparity CurvesI. Horizontal Data
作者:
KENT DAUM,
ROBERT RUTSTEIN,
MICHAEL CHO,
J. ESKRIDGE,
期刊:
American Journal of Optometry and Physiological Optics
(OVID Available online 1988)
卷期:
Volume 65,
issue 1
页码: 1-7
ISSN:0093-7002
年代: 1988
出版商: OVID
关键词: vergence training;fusional vergences;fixation disparity
数据来源: OVID
摘要:
The purpose of this study was to assess the effects of horizontal and vertical vergence training on fusional vergences and the fixation disparity (FD) curve. Thirty-four subjects were divided into three groups. One-third served as controls and the other two-thirds underwent 5 h of supervised horizontal and vertical vergence training, respectively. Before and after the 4 week training period, vergences and FD curves were measured by a single individual who was intentionally uninformed of each subject's group. We hypothesized that the subjects in the horizontal training group would have increased vergence amplitudes and flatter FD slopes. Our analysis revealed that the positive vergences increased significantly for those in the horizontal group. No evidence was found to suggest changes in any variables related to the FD curve. Because type II errors were likely to be unacceptably large, further work is necessary to determine the relation between fusional vergence training and variables derived from the FD curve.
点击下载:
PDF
(520KB)
返 回