Relation between distance heterophoria and tonic vergence.
Relation between distance heterophoria and tonic vergence.
复制标题
距离隐斜和强直性聚散之间的关系。
DOI：
10.1097/00006324-198810000-00002
复制
发表时间：
1988
期刊：
影响因子：
--
通讯作者：
Super,P
中科院分区：
文献类型：
--
作者：
O'Shea,WF;Ciuffreda,KJ;Fisher,SK;Tannen,B;Super,P
在标准的低照度条件和完全黑暗条件下，使用von Graefe和Maddox棒临床程序测量距离暗视。在完全黑暗中测量进补收敛度。两种度量中，phoria度量比tonic度量发散性更大，其中von Graefe度量发散性更大。对焦和强音会聚位置的差异被认为是由于相对于强音水平，对焦距离远的强音目标所需的可调节度降低而产生的可调节散度。推导了从光值预测强光收敛的方程。
The distance heterophoria was measured using both the von Graefe and Maddox rod clinic procedures under standard reduced illumination conditions and in total darkness. Tonic vergence was measured in total darkness. The phoria measures were more divergent than tonic vergence, with the von Graefe being the more divergent of the two measures. The difference between the phoria and tonic vergence position is believed to be due to accommodative divergence derived from the decrease of accommodation, relative to the tonic level, required to focus the distance phoria target. Equations were derived to predict tonic vergence from the phoria value.