Characteristics of children without any vertigo symptoms.
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Near point of convergence (NPC) is measured in centimeters; heterophoria and vergence fusion are measured with the orthoptic technique, and values are given in prism diopters. Heterophoria and vergence amplitude were measured at far (4 m) and near (30 cm) distances. Heterophoria is negative in the case of exotropia and positive in the case of esophoria.
创建时间：
2015-12-02
