Kaimbo D K, Mwilambwe A M, Leys A, Missotten L
Service d'Ophtalmologie, Cliniques Universitaires de Kinshasa, Zaïre.
Bull Soc Belge Ophtalmol. 1995;259:127-31.
to determinate the characteristics of myelinated nerve fibres in Zairian blacks patients.
a review of records of patients with myelinated nerve fibers seen from 1962 to 1994.
the relative incidence of myelinated nerve fibers was 0.02%. There were 13 (76%) male patients and 4 (24%) female patients. The average age at the moment of diagnosis was 32 years (range, 7 to 61 years). Myelinated nerve fibers were bilateral in 8 (47%) patients (16 of 25 eyes, 64%) and unilateral nerve fibers, 21 (84%) eyes contained a single lesion and 4 (16%) eyes contained multiple separate and distinct patches of myelinated fibers. Continuous lesions were present in 21 (84%) eyes and discontinuous lesions in 4 (16%) eyes. The 25 affected eyes varied in refractive error from a spherical equivalent of + 1.5 to - 16.00. The distribution of refraction was: emmetropia in 2 (12%) patients (2 eyes, 8%), simple myopia in 4 (24%) patients (5 eyes, 20%), myopia over 6 D with amblyopia in 6 (35%) patients (10 eyes, 40%), hypermetropia in 5 (29%) patients (8 eyes, 32%).
this study showed a low relative incidence of myelinated nerve fibers and the bilaterality of lesions was frequent.
确定扎伊尔黑人患者有髓神经纤维的特征。
回顾1962年至1994年有髓神经纤维患者的记录。
有髓神经纤维的相对发病率为0.02%。男性患者13例(76%),女性患者4例(24%)。诊断时的平均年龄为32岁(范围7至61岁)。8例(47%)患者的有髓神经纤维为双侧(25只眼中的16只,64%),单侧神经纤维中,21只眼(84%)有单个病变,4只眼(16%)有多个独立且不同的有髓纤维斑块。21只眼(84%)存在连续性病变,4只眼(16%)存在间断性病变。25只患眼的屈光不正范围从等效球镜度+1.5到-16.00。屈光分布情况为:正视2例(12%)患者(2只眼,8%),单纯近视4例(24%)患者(5只眼,20%),近视超过6D且有弱视6例(35%)患者(10只眼,40%),远视5例(29%)患者(8只眼,32%)。
本研究显示有髓神经纤维的相对发病率较低,且病变双侧性较为常见。