调节性内斜视弱视儿童多导视觉诱发电位临床研究  

A study of the multiple channel PRVEP in children with accommodative esotropic amblyopia

作　　者：苏鸣[1] 王超英[2] 宋秀君 滑惠兰[1] 陈璐[1] 

机构地区：[1]河北省儿童医院眼科,050031 [2]石家庄白求恩国际和平医院眼科 [3]河北省医科大学第三医院眼科

出　　处：《中国斜视与小儿眼科杂志》2001年第1期18-22,共5页Chinese Journal of Strabismus & Pediatric Ophthalmology

摘　　要：目的　研究调节性内斜视弱视患儿多导VEP特点。方法　使用多导PRVEP检测系统 ,对调节性内斜视弱视患儿 3 2例 ,正常对照组 2 4例进行全视野及鼻、颞侧视野刺激。分析VEP波形及地形图结果。结果　 (1 )单眼全视野刺激　斜视眼 1 -1 4各导联P波潜伏期延长、振幅降低 (P <0 0 5或 0 0 1 )。双外侧电极记录的VEP波形不对称。 (2 )半侧视野刺激　斜视眼除鼻颞侧刺激P波潜伏期均延长外 ,同眼鼻侧视网膜P波潜伏期明显长于颞侧 (P <0 0 1 ) ;非斜视眼未见同眼鼻、颞侧视网膜P波潜伏期差异。结论　在全视野检测时枕部外侧电极记录结果受多种因素影响。调节性内斜视弱视患儿斜视眼半视野刺激 ,其VEP存在着鼻、颞侧非对称现象。Objective To study the characteristics of Pattern Reversal Visual Evoked Potentials (PRVEP) in children with accommodative esotropic amblyopia. Methods Multiple channel VEP elicited by monocular full field and half field stimulation were recorded in 32 children with accommodative esotropic amblyopia and 24 normal controls. Results (1) Full field stimulation: In esotropic eyes, the latencies and the amplitudes of the P wave recoreed from electrose No. 1～14 were significantly prolonged and reduced compared with those in normal controls (P<005 or 001) The waves of VEP recorede from the electrodes on the left side were irregular compared with those on the right side. (2) Half field stimulation: In esotropic eyes, the latencies of the P wave recorded from the corresponidng electrodes of stimulation were significantly prolonged compared with those in normal controls (P<001); The latencies of P wave evoked through nasal retina were more significantly prolonged than that through temporal retina (P<001). But those asymmetries were not observed in non-esotropic eyes of this group. Conclusions The VEP recordings from the external electrodes of Oz may be affected by various conditions when those were evoked by full field stimulation. There may be VEP naso-temporal asymmetries of half field stimulation in the esotropic eyes of accommodative esotropic amblyopia.

关 键 词：调节性内斜视 弱视 视觉诱发电位 儿童 

分 类 号：R779.7[医药卫生—眼科]