色盲是一种常见的色觉异常现象。自从1794年著名的英国化学家道尔顿(他本人就是色盲患者)发表了研究报导以来,世界上许多科学家对其病理作了不懈的探索;最近美国斯坦福大学以内森斯为主的一个研究小组用遗传学方法进行的研究取得了新的突破,为揭开色盲之谜作出了重要贡献。近些年,有人通过研究人视网膜中央凹附近的视 Color blindness is a common abnormal color vision. Since the famous British chemist Dalton (he is a color-blind patient) published research report in 1794, many scientists in the world have made unremitting exploration of his pathology. Recently, a research group led by Nathan S. Research using genetics methods has made new breakthroughs and made important contributions to uncovering the mystery of color blindness. In recent years, some people have studied the vision near the fovea