Visual field defects after temporal lobe resection - A prospective quantitative analysis
Visual field defects after temporal lobe resection - A prospective quantitative analysis
复制标题
DOI：
10.1212/wnl.53.1.167
复制
发表时间：
1999-07-13
期刊：
影响因子：
9.9
通讯作者：
Donahue, SP
中科院分区：
文献类型：
--
作者：
Hughes, TS;Abou-Khalil, B;Donahue, SP
目的：前瞻性评估和量化颞叶切除术治疗顽固性癫痫患者的视野变化。背景资料：视野异常发生后颞叶切除癫痫，但是，我们还没有遇到使用自动静态视野分析的报告。研究方法：Humphrey视野（程序30-2）之前和之后的部分颞叶切除术连续32例顽固性癫痫患者。在受累的上级象限进行定量逐点分析，并对整个患者组的缺损进行平均。结果：31例患者出现视野缺损，但没有人意识到该缺损。最近的固定点相对较少。缺损最大的部门最接近垂直子午线在同侧的眼睛切除。同侧和对侧的平均场缺陷也不同的地形和深度。外侧颞叶切除的范围和对侧眼缺损的程度之间存在显著相关性。结论：同侧和对侧视野缺损的形状和深度存在差异，以前没有报道过。这些研究结果表明，某些纤维从同侧眼睛旅行更前方和外侧的迈耶环，并支持这一假设，视野缺损，由于前膝状体后病变是相对不一致的，因为在传入通路的解剖差异。自动视野检查是评价和量化视野缺损的敏感方法。
Objective: To evaluate and quantify prospectively visual field changes in patients undergoing temporal lobe resections for intractable epilepsy. Background: Visual field abnormalities occur after temporal lobe resections for epilepsy; however, we have not encountered published reports using automated static visual field analysis. Methods: Humphrey visual fields (program 30-2) were obtained before and after partial temporal lobe resection in 32 consecutive patients with intractable epilepsy. A quantitative point-by-point analysis was made in the affected superior quadrant, and the defects were averaged for the whole patient group. Results: Thirty-one patients developed a visual field defect, but none was aware of the defect. The points nearest fixation were relatively spared. The defects were greatest in the sector closest to the vertical meridian in the eye ipsilateral to the resection. The ipsilateral and contralateral mean field defects also differed in both topography and depth. A significant correlation was found between the extent of lateral temporal lobe resection and the degree of the defect in the contralateral eye. Conclusions: There are differences in the shape and depth of the ipsilateral and the contralateral field defects not previously reported. These findings demonstrate that certain fibers from the ipsilateral eye travel more anteriorly and laterally in Meyer's loop, and support the hypothesis that visual field defects due to anterior retrogeniculate lesions are relatively incongruous because of anatomic differences in the afferent pathways. Automated perimetry is a sensitive method of evaluating and quantifying visual field defects.