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目的 了解斜视术后眼球屈光状态的动态变化及不同术式对屈光状态的影响 ,并对其发生机理进行初步探讨。方法 用散瞳验光和角膜地形图检查 ,对 35例垂直斜视进行手术前后屈光状态的动态分析。结果 斜肌手术对眼球屈光状态无影响 ,上直肌后徙术可使上方角膜变陡峭 ,但对鼻、下、颞侧角膜及散光度无影响。上直肌后徙术及下直肌截除术对上、下侧角膜及散光度的影响有显著性差异 (P <0 0 1 )。结论 斜视手术对眼球屈光状态的影响是可恢复的 ,不同术式所需恢复的时间不同。
Objective To investigate the dynamic changes of refraction status and the effects of different surgical procedures on refractive status after strabismus surgery, and to study its mechanism. Methods Mydriatic optometry and corneal topography were used to examine the dynamic changes of refractive status before and after surgery in 35 patients with vertical strabismus. Results The oblique operation had no effect on the refraction status of the eyeball. The upper rectus muscle retrograde operation made the upper cornea steep, but had no effect on the nasal, inferior, temporal corneas and astigmatism. The effect of upper rectus posterior rectus and lower rectus abdominis excision on corneal astigmatism and astigmatism was significantly different (P <0.01). Conclusions The effect of strabismus surgery on the refraction of the eyeball is recoverable, and the time required for recovery is different for different surgical procedures.