先天性特发性眼球震颤Parks法手术前后的立体视觉

Stereoacuity Before and After Operation of Parks in Children with Congenital Idiopathic Nystagmus

目的:观察先天性特发性眼球震颤儿童Parks中间带移位术前后的立体视觉。方法:利用同视机图片和立体图本,检查12例先天性眼球震颤儿童术前和术后6mo正前方远、近距离立体视觉。结果:所有患者术后正前方眼球基本不震颤或明显减轻,12例患儿中7例代偿头位消失,获得立体视觉,5例术后代偿头位改善,其中3例建立同时视觉,但未建立立体视觉。结论:Parks法中间带移位术治疗先天性特发性眼球震颤,不仅能消除和减轻代偿头位与眼球震颤,提高视力,代偿头位消失的患者还能建立远、近立体视觉,提高视觉质量。

AIM： To observe the stereoacuity before and after operation of Parks shift of neutral zone in children with congenital idiopathic nystagmus. METHODS： Using synoptophore stereograms and near stereoacuity chart, the distance and near stereoacuity in primary gaze position and neutral zone of 12 children with congenital idiopathic nystagmus at pre-operation and 6 months after operation were examined. RESULTS： Nystagmus was disappeared or obviously relieved in the primary gaze position. Compensatory head position was eliminated in 7 cases after operation, and improved in 5 cases. Three cases established single binocular vision but no stereoscopic vision after operation. CONCLUSION： Not only the compensatory head position, nystagmus and visual acuity are improved after operation of Parks shift of neutral zone, but the distance and near stereoscopic vision are established, visual quality is improved in cured compensatory head position cases.