辐辏功能不足是两眼视线的平行运动正常,但内直肌同时收缩的有关运动表现功能不足[1]。它不是一种独立的临床疾病,可伴有或完全不合并各种斜视。临床检查,近点后退远移(10ｃｍ以外),且随视标移近外斜倾向增加。同视机检查,辐辏范围很小。主要症状,轻者有眼肌疲劳、眼胀、头痛, Deflexivity is the normal parallel movement of both eyes, but at the same time the contraction of the rectus medial motor function related to lack of performance [1]. It is not an independent clinical disease, with or without a variety of strabismus. Clinical examination, near point back away (10cm away), and with the visual field moving closer to the oblique increase. With the same machine check, convergence range is very small. The main symptoms, the light of eye muscle fatigue, eye swelling, headache,