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目的分析共同性斜视术后AC/A比率的变化特点及其相关的主要因素。方法AC/A比率测量同术前一样采用同视机法。随访术后≥6周病例,内斜视19例:外斜视32例。将各类型的斜视均值同其术前相应的AC/A比率均值及正常人的均值对比,并行不同术式AC/A比率均值分析。结果术后ACJA比率均值:内斜视3.16±1.15;外斜视2.32±1.03。内斜视主要类型的AC/A比率较术前下降(P<0.01),同正常人比无统计学意义(P>0.05)。外斜视分开过强型较术前下降(P<0.01),集合不足型较术前上升(P=0.012),其它类型无统计学意义(P>0.05)。外斜视仅基本型低于正常人(P<0.05)。共同性斜视的异常值均较术前显著减少(P<0.05或0.01)。各术式对内斜视AC/A比率的影响无明显差异(P>0.05),对外斜视的影响部分有差异(P<0.05或0.01)。结论手术可使共同性斜视异常的AC/A比率趋于正常。其影响与斜视的种类及类型有关,内斜视所受影响与术式无关,外斜视尚不能肯定其与术式的关系。
Objective To analyze the change characteristics of AC / A ratio and the related main factors after common strabismus surgery. Method AC / A ratio measurement using the same as before the same method. Follow-up ≥ 6 weeks after surgery, esotropia in 19 cases: exotropia in 32 cases. The mean strabismus values of all types were compared with the corresponding mean AC / A ratios and mean normals before surgery, and the mean AC / A ratios of different types of operations were analyzed. Results The average rate of postoperative ACJA: esotropia 3.16 ± 1.15; exotropia 2.32 ± 1.03. The ratio of the major types of esotropia was significantly lower than that before the operation (P <0.01), but not significantly different from that of the normal subjects (P> 0.05). Exotropia was significantly stronger than preoperatively decreased (P <0.01), and underutilized increased compared with preoperative (P = 0.012). Other types had no statistical significance (P> 0.05). Exotropia only basic type lower than normal (P <0.05). The abnormal strabismus values were significantly lower than those before surgery (P <0.05 or 0.01). There was no significant difference (P> 0.05) in the effect of each operation on the ratio of strabismus AC / A and the difference of exotropia (P <0.05 or 0.01). Conclusion Surgery can make the AC / A ratio of common strabismus tend to be normal. Its influence is related to the type and type of strabismus. The influence of esotropia has nothing to do with the surgical procedure. Exotropia still can not confirm its relation with the surgical procedure.