Does visual restitution training change absolute homonymous visual field defects? A fundus controlled study
Does visual restitution training change absolute homonymous visual field defects? A fundus controlled study
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DOI：
10.1136/bjo.2003.040543
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发表时间：
2005-01-01
影响因子：
4.1
通讯作者：
Trauzettel-Klosinski, S
中科院分区：
文献类型：
--
作者：
Reinhard, J;Schreiber, A;Trauzettel-Klosinski, S
目的：为了研究视觉恢复训练（VRT）是否能够改变绝对homopolymerfield缺陷，评估与眼底控制的microperimetry，在hemianobias.Methods：17例患者稳定homopolymerfield缺陷前后6个月的VRT期间进行了调查与一个专门的microperimetric方法，使用扫描激光检眼镜（SLO）。通过SLO眼底监测控制固定。通过计算绝对缺陷数量与测试点数量的比值来量化场缺陷的大小;将训练效果E定义为训练前后这两个比值之间的差异。结果：右眼平均训练效果E = 0.025（SD 0.052），左眼平均训练效果E = 0.008（SD 0.034）。在一只眼睛，轻微的非均匀性改善沿着水平子午线occurrent.Conclusions：在一个病人，轻微的改善沿着水平子午线被发现在一只眼睛。在训练后观察到的绝对视野缺损边界没有明显的homemorrhage变化。
Aim: To examine whether visual restitution training (VRT) is able to change absolute homonymous field defect, assessed with fundus controlled microperimetry, in patients with hemianopia.Methods: 17 patients with stable homonymous visual field defects before and after a 6 month VRT period were investigated with a specialised microperimetric method using a scanning laser ophthalmoscope (SLO). Fixation was controlled by SLO fundus monitoring. The size of the field defect was quantified by calculating the ratio of the number of absolute defects and the number of test points; the training effect E was defined as the difference between these two ratios before and after training. A shift of the entire vertical visual field border by 1degrees would result in an E value of 0.14.Results: The mean training effect of all right eyes was E = 0.025 (SD 0.052) and all left eyes E = 0.008 (SD 0.034). In one eye, a slight non-homonymous improvement along the horizontal meridian occurred.Conclusions: In one patient, a slight improvement along the horizontal meridian was found in one eye. In none of the patients was an explicit homonymous change of the absolute field defect border observed after training.