Preferential-looking acuity and stereopsis in infantile esotropia.
Preferential-looking acuity and stereopsis in infantile esotropia.
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婴儿内斜视的优先视敏度和立体视。
DOI：
10.3928/0191-3913-19860701-03
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发表时间：
1986
影响因子：
1.2
通讯作者：
E. Birch
中科院分区：
文献类型：
--
作者：
D. Stager;E. Birch
在治疗开始前，对100名内斜视婴儿进行了单眼视力和立体视检查。自由交替内斜视的婴儿内斜视和单侧内斜视的偏爱眼与年龄匹配的正常婴儿的单眼视力无显著差异。在3-5个月期间，非首选眼的PL视力正常，但在6-14个月期间经常低于正常。3-4个月的正常和内斜视婴儿在5-14个月期间表现出大致相同比例的立体视觉，但表现为立体视觉的内斜视比正常婴儿少。在通过遮盖-揭盖试验判定为非弱视的婴儿中，95%的婴儿在PL测试中也没有弱视的证据。总体而言，通过遮盖-揭盖试验判断为弱视的内斜视婴儿中，有42%的婴儿在PL中发现弱视。当8个月以下的临床弱视婴儿被PL发现为非弱视时，PL和注视偏好之间的差异最大(73%)。这些发现表明，注视偏好在弱视发作之前就形成了，弱视是由PL检测到的。PL立体视觉测试的结果表明，至少在一些内斜视婴儿中存在立体视通路，并具有潜在的功能。
One hundred esotropic infants were assessed by preferential-looking (PL) for monocular acuity and stereopsis before the initiation of treatment. PL acuity of infantile esotropes who freely alternated fixation and of preferred eyes of unilateral esotropes was not significantly different from monocular acuity of age-matched normal infants. PL acuity of non-preferred eyes was normal during months three to five, but frequently below normal during months six to 14. Approximately the same percentage of normal and esotropic infants aged three to four months demonstrated stereopsis, but fewer esotropes than normals demonstrated stereopsis, during months five to 14. Ninety-five percent of infants judged non-amblyopic by the cover-uncover test also showed no evidence of amblyopia in the PL test. Overall, 42% of esotropic infants judged amblyopic by the cover-uncover test were found amblyopic by PL. Most discrepancies between PL and fixation preference (73%) occurred when clinically amblyopic infants under eight months of age were found non-amblyopic by PL. These findings suggest that fixation preference develops prior to the onset of amblyopia detectable by PL. The results of PL stereopsis testing suggest that stereoscopic pathways are present and potentially functional in at least some esotropic infants.