患有酪氨酸酶阴性眼皮肤白化病的同卵双胞胎的眼球运动行为。

Ocular motor behaviour of monozygotic twins with tyrosinase negative oculocutaneous albinism.

作者信息

Abadi R V, Pascal E

机构信息

Department of Optometry and Vision Sciences, UMIST, Manchester.

出版信息

Br J Ophthalmol. 1994 May;78(5):349-52. doi: 10.1136/bjo.78.5.349.

DOI:10.1136/bjo.78.5.349

PMID:8025067

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC504785/

Abstract

The involuntary nystagmus movements of 16-year-old monozygotic twins with tyrosinase negative oculocutaneous albinism were examined. On primary gaze both girls exhibited bilateral conjugate horizontal nystagmus, a jerk with extended foveation waveform, and similar frequencies (2.0 Hz:1.9 Hz), although the fast phases were in opposite directions. The mean amplitudes differed markedly (6.8 degrees:3.7 degrees), as did the position of the null zones (+20 degrees to +30 degrees:-25 degrees to -35 degrees) and the widths of the neutral zones (-25 degrees to +20 degrees:-25 degrees to -35 degrees). Since the twins have identical genotypes these differences must have arisen from other sources.

摘要

对患有酪氨酸酶阴性眼皮肤白化病的16岁同卵双胞胎的不自主眼球震颤运动进行了检查。在第一眼位时，两个女孩均表现出双侧共轭水平眼球震颤，呈带有延长注视波形的急跳性，且频率相似（2.0赫兹：1.9赫兹），尽管快相方向相反。平均振幅差异显著（6.8度：3.7度），零区位置（+20度至+30度：-25度至-35度）和中性区宽度（-25度至+20度：-25度至-35度）也是如此。由于这对双胞胎具有相同的基因型，这些差异必定源自其他因素。