Shpak A A, Zubareva L N
Vestn Oftalmol. 1990 Jan-Feb;106(1):24-7.
The authors suggest a method for assessment of the severity of visual function impairment in obscuration amblyopia (OA) by objective (based on recording the visual evoked potentials--VEP) examination of space contrast sensitivity in low-frequency band. Forty-one normal children and 60 children with ophthalmic diseases (96 eyes, of these 55 with aphakia and artiphakia after removal of congenital cataracts and 41 with congenital partial cataracts) were examined. Three types of VEP were distinguished, with different degrees of manifestation. A correlation was demonstrated between VEP type and OA severity in children with aphakia and artiphakia. Use of this method in patients with partial cataracts helps predict visual outcomes of surgery, provided the intensity of the lens opacity is taken into consideration; the reliability of the estimation of the authors' material has made up 90.0 +/- 4.6%.
作者提出了一种通过对低频带空间对比敏感度进行客观检查（基于记录视觉诱发电位——VEP）来评估遮盖性弱视（OA）视觉功能损害严重程度的方法。对41名正常儿童和60名患有眼科疾病的儿童（96只眼，其中55只在摘除先天性白内障后为无晶状体和人工晶状体眼，41只患有先天性部分白内障）进行了检查。区分出三种表现程度不同的VEP类型。在无晶状体和人工晶状体眼的儿童中，VEP类型与OA严重程度之间存在相关性。在部分白内障患者中使用该方法有助于预测手术的视觉效果，前提是要考虑晶状体混浊的程度；作者资料估计的可靠性为90.0±4.6%。
