间歇性外斜视患者调节和集合与屈光状态的关系

The relationship between accommodation and convergence and refractive errors in patients with intermittent exotropia

间歇性外斜视(intermittent exotropia,IXT)患者与眼位正常者相比表现出异常的调节和集合功能,其改变机制与IXT患者为控制外斜眼位形成双眼单视,在动用融合性集合的同时增强了调节功能有关。IXT患者与近视之间存在交互相关关系,IXT注视眼与偏斜眼之间的不对称性可提示两眼近视进展差异的原因,为手术方式的选择提供建议。

Intermittent exotropia(IXT)shows abnormal accommodation and convergence.The mechanism of the change of accommodation and convergence is related to the formation of binocular monovision in order to control the exotropia in IXT patients,and excessive accommodation while using fusional convergence.There is an interactive relationship between IXT and myopia.The asymmetry between the IXT fixing eye and the deviating eye can indicate the reason for the difference in myopia progression between the two eyes and provide advice on the choice of surgical approach.