But scientists at the Office of Naval Research in Arlington, Va., believe they are on the path to a chip that could truly mimic the entire nerve system of the retina back of the human eye.

• 位于弗吉尼亚州阿灵顿市海军研究所的科学家们认为，他们很快就能研制出一种可以真正模拟人眼视网膜整个神经系统的芯片。