OBSERVATIONS ON ACCOMMODATIVE CONVERGENCE - ESPECIALLY ITS NONLINEAR RELATIONSHIPS
OBSERVATIONS ON ACCOMMODATIVE CONVERGENCE - ESPECIALLY ITS NONLINEAR RELATIONSHIPS
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DOI：
10.1016/s0002-9394(14)78051-1
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发表时间：
1959-01-01
影响因子：
4.2
通讯作者：
OGLE, KN
中科院分区：
文献类型：
--
作者：
MARTENS, TG;OGLE, KN
在正常情况下，改变眼睛调节的刺激伴随着会聚刺激的变化，这将表现为眼睛隐斜的变化。由给定的调节（屈光度）变化引起的棱镜屈光度变化（隐斜视）的幅度称为“调节会聚：调节比率”（AC：A），通常以每屈光度的棱镜屈光度表示。这个比率可以通过多种方式找到。最简单的方法是在给定的注视距离处确定隐斜视，然后在定视眼之前添加正或负镜片并再次测量隐斜视。调节中每个屈光度变化带来的隐斜（会聚）变化量给出了 AC：A 比率。该比率在临床上对于必须处理症状性隐斜视的问题病例可能是有用的，特别是在早期老花眼、其他近视问题中，以及当需要了解调节神经支配的程度时。 1
Under normal conditions, a stimulus to change the accommodation of the eye is ac companied by a change in the stimulus of convergence, which will be manifest as a change in the phoria of the eyes. The magni tude of the change of convergence (phoria) in prism diopters caused by a given change in the accommodation (diopters) is called the" accommodative convergence: accommo dation ratio"(AC: A) and is usually ex pressed in prism diopters per diopter. This ratio can be found in several ways. The easiest way is to determine the phoria at a given fixation distance and then add a plus or minus lens before the fixing eye and again measure the phoria. The amount of change in the phoria (convergence) brought about per diopter change in accommodation gives the AC: A ratio. This ratio may be useful clinically in problem cases in which sympto matic heterophorias must be dealt with, especially in early presbyopia, in other nearvision problems, and also when some insight into the magnitude of the accommodative innervation is desired. 1