挫伤性屈光不正的眼超声生物学检测

Traumatic Ametropia:An Ultrasomographic Study

对１１２例挫伤性屈光不正患者进行了眼超声生物学检测，结果提示，挫伤性近视患者眼球解剖结构存在两大变化，即晶体前移和厚度增加．超声前房深度、晶体厚度在伤后的检测结果与对照组相比具显著性差异。并对挫伤性屈光不正的发生机制进行了探讨。

We have performed a biometric study that used A-mode ultrasonography on 112 patients with traumaticametropia. In all cases there was a large increase in anteriorposterior thickness of lens.The vitreous cavityremained essentially unchanged in size.It was the forward movement of the anterior lens surface which re-sulted in shallowing of the anterior chamber,There were significant changes of anterior chamber depth andlens thickness in measurement derived from Teknar A scan biometric ruler.The possible causes of traumaticmyopia are reviewed.