Evaluation of a new quantitative technique to assess the number and extent of preferred retinal loci in macular disease
Evaluation of a new quantitative technique to assess the number and extent of preferred retinal loci in macular disease
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DOI：
10.1016/j.visres.2004.01.006
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发表时间：
2004-06-01
期刊：
影响因子：
1.8
通讯作者：
Rubin, GS
中科院分区：
文献类型：
--
作者：
Crossland, MD;Sims, M;Rubin, GS
由于黄斑疾病导致暗点的患者可能会使用一个以上的首选视网膜位点（PRL）进行固定。我们已经开发和评估了一个客观的，定量的技术，以确定在所有事件的固定和每个位点的程度使用的催乳素的数量。我们的技术在八名黄斑疾病成人中的五名中一致地指示了多个PRL的存在。患有多个PRL的患者更有可能在受试眼中遭受近期视力丧失。我们的技术比传统的计算一个单一的二元轮廓椭圆面积的方法更充分地描述固定。(C)2004 Elsevier Ltd.保留所有权利。
Patients with scotomas due to macular disease may use more than one preferred retinal locus (PRL) for fixation. We have developed and evaluated an objective, quantitative technique to determine the number of PRLs used during all episode of fixation and the extent of each locus. In five of eight adults with macular disease our techniques consistently indicated the presence of multiple PRLs. Patients with multiple PRLs were more likely to have suffered recent vision loss in the tested eye. Our technique describes fixation more fully than the traditional method of calculating a single bivariate contour ellipse area. (C) 2004 Elsevier Ltd. All rights reserved.