周期性内斜视的屈光状态与临床治疗

目的 探讨周期性内斜视的屈光状态与治疗方法。方法 对２４例周期性内斜视者用１％阿托品液散瞳验光检验屈光度。斜视日与正位日用三棱镜测量斜视度,用同视机检验双眼立体视觉。手术量按斜视日最大斜视角有设计。结果 轻度、中度远视２３例。斜视日均有复视。正位日均有双眼立体视觉,斜视矫正术后２３例在斜视日与非斜视日眼位均矫正有正常的立体视觉。结果 为获得正常的双眼立体视功能,应在周期性期间及早手术。手术量控斜视

Refractivestatus of periodic esotropia and its clinical management

ObjectiveThe study was designedto investigate refractive status and its effect on the management of periodic esotropia bysurgery.Methods24 cases of periodic esotropia were refracted using 1%atropine. The angle of strabismus was tested with a prism. Stereopsis was tested with astereoscope on both strabismus and orthophoria days. The amount for surgical correctiondepends on the largest angle measured on strabismus days.Results Therewas low and medium hyperopia in 23 cases. There was physiological diplopia on strabismusdays and binocular stereopis on orthophoria days in all 24 cases. After surgery, the eye'sposition was corrected in 23 cases. They had normal stereopsis.ConclusionInorder to obtain normal stereopsis, strabismus surgery should be performed during the earlysigns of periodic esotropia. The post-surgical position of the eyes will not beovercorrected if the correction is based on the largest deviation during periods ofstrabismus.