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根据美国黄斑退化病基金会的统计,美国现有一千多万人受到黄斑退化病的侵害.黄斑病是一种现代医学无法治愈,对人眼致盲的眼部主要疾病.此病的临床表现是在视网膜的中心区发生黄斑,该中心的光感受体是供记录我们所看到的景物,然后通过视神经系统将所看到的景物传至大脑.黄斑疾病能够破坏将光信号转成电信号的光感受组织,为此,科学家们希望研制出一种能够按照自然规律将所见景物传入大脑的人工视觉系统.该项工作的难点是如何将光信号转换并编码成电信号,并找出视网膜上的哪些细胞会在这一过程中担当此任.目前,美国Tulsa大学的电气工程师和Oklahoma
According to the American Foundation for the Study of the Macular Degeneration, more than 10 million people in the United States now suffer from degenerative macular degeneration, a major ocular disease that can not be cured by modern medicine and cause blindness to the human eye. The performance is the macula in the central retinal area, the center of the photoreceptor for recording we can see the scene, and then through the optic nerve system will see the scene to the brain .Dry spot disease can destroy the light signal into electricity For this reason, scientists hope to develop an artificial vision system capable of transmitting what they see to the brain in accordance with the laws of nature, the challenge of which is to convert and encode optical signals into electrical signals and Find out which cells in the retina will play this role in the process.At present, the United States Tulsa University electrical engineer and Oklahoma