Name: multifocal electroretinograms
Uploaded: 2011-12-04T14:00:00
Description: Watch this Scientific Journal Video about Multifocal Electroretinograms at JoVE.com

1。协议文本选择一个小的电气干扰房间。接收器是方便洗手和清洁电极。互联网连接也是可取的共享数据和系统制造商来更新软件或帮助解决问题。 <ol><li>组织扩张下降，平衡盐溶液，局部麻醉剂和清洁产品，让他们提供便捷的服务。 </li><li>始终放置在同一位置的科目，为每一个主题，并使用相同的室内照明。 </li><li>自我介绍和程序后，扩张主体的眼睛。只有散瞳扩张是...

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传统上，满场和单点尔格，记录从视网膜的面积有限，已被用于诊断，并按照视网膜疾病的进展。这种做法的局限性是，这些技术不敏感，除非至少有20％的视网膜受到影响。视野缺损的视网膜创伤生产产生异常mfERGs，与视野损失 5 。在这种方式中，多焦视网膜电图测试视网膜疾病的诊断和进展打开了新的层面。 解释mfERG结果时，重要的是要查看的2D个别波描记和3D彩?...

multifocal electroretinograms

传统的全领域视网膜电图（ERG）视网膜病变的诊断的局限性是缺乏敏感性。一般来说，ERG的结果是正常的的，除非超过约20％的视网膜受到影响。在实际应用中，病人可能在法律上失明的黄斑变性或其他scotomas结果仍显示正常，根据传统的全领域ERG的。尔格的一个重要的发展是多焦视网膜电图（mfERG）。埃里希萨特适应的数学序列，称为二进制米的序列，使从一个单一的电信号电图，即小于平方毫米视网膜视觉刺激1在每个隔离。 mfERG产生的结果会出现类似闪光ERG产生的。相比之下，以闪光ERG，最能产生适合于全眼疾的数据。计算数学的一个基本mfERG结果是基于verage积极偏转组件的传统ERG的反应，被称为B - 1波，近似。多焦视网膜电方案措施，从一百多每眼视网膜电活动，在几分钟之内。增强的空间分辨率，使scotomas和视网膜功能障碍，映射和量化。 在下面的协议中，我们描述了使用双极窥器隐形眼镜mfERGs录音。 mfERG系统组件不同厂商之间的。介绍可见的刺激，一些合适的CRT显示器也有，但大多数系统都采用平板液晶显示器（LCD）的使用。描绘这里的视觉刺激，产生级联35的LCD微显示器- 40度水平和30 - 35度垂直的视野，并校准多焦闪光强度2.7 CD SM -2。扩增50K。下一个高层D带通限额分别为10和300赫兹。使用的软件包分别为5和6 VERIS版本。

Watch this Scientific Journal Video about Multifocal Electroretinograms at JoVE.com

Multifocal Electroretinograms

多焦视网膜电图（mfERG）的发展是一个重要进展视网膜病变的诊断和表征。多焦视网膜电是一个b波近似的数学平均。软件程序可以来自一百多个在几分钟每眼视网膜领域尔格。 Scotomas和视网膜功能障碍可以被映射和量化。

多焦视网膜电

A limitation of traditional full-field electroretinograms (ERG) for the diagnosis of retinopathy is lack of sensitivity.  Generally, ERG results are ...