引起V型斜视的常见原因为斜肌功能异常，包括原发性下斜肌功能亢进28例（58％），先天性上斜肌麻痹20例（42％）。

The etiology of V pattern deviation are vertical muscle dysfunction, including the primary inferior oblique muscle overreaction 28 (58%), congenital superior oblique muscle paralysis 20 (42%).

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引起V型斜视的常见原因为斜肌功能异常，包括原发性下斜肌功能亢进28例（58％），先天性上斜肌麻痹20例（42％）。

The etiology of V pattern deviation are vertical muscle dysfunction, including the primary inferior oblique muscle overreaction 28 (58%), congenital superior oblique muscle paralysis 20 (42%).

youdao