方法：临床横断面研究。给30例临床诊断单眼先天性上斜肌麻痹的患者进行三维CT检查。在冠状位测量患者双眼上斜肌最大横截面面积和CT值。

结果：麻痹眼和非麻痹眼上斜肌肌腹的最大横截面面积分别为4.52±1.49，8.80±1.42mm²； CT值分别为11.57±22.88，35.13±9.74。麻痹眼上斜肌肌腹的最大横截面面积和CT值都明显小于非麻痹眼，差异非常显著，有统计学意义。

结论：三维CT扫描显示单眼先天性上斜肌麻痹患者麻痹眼的上斜肌肌腹的横截面面积和CT值明显比非麻痹眼的上斜肌肌腹的横截面面积和CT值小。

METHODS: Clinical cross-sectional study included of 30 cases which clinically diagnosed monocular congenital superior oblique palsy for dimensional CT. CT values were measured at the position of coronal oblique maximum cross-sectional area at patient eyes.

RESULTS: Ocular and non-ocular paralysis of superior oblique muscle belly maximum cross-sectional area were 4.52±1.49, 8.80±1.42mm²,respectively. CT values were 11.57±22.88 and 35.13±9.74. Paralysis of eye muscles abdominal oblique maximum cross-sectional area and CT values were significantly less than those of the non-paralyzed eye. The difference had statistical significance.

CONCLUSION: The results of dimensional CT scan shows that the CT value of patients with monocular congenital superior oblique palsy superior oblique eye muscle paralysis abdominal cross-sectional area is significantly higher than that of the non-paralyzed eye on the oblique abdominal muscle cross-sectional area.