视神经乳头上的异常血管北京医科大学第一医院眼科陈家彝视神经乳头上的异常血管种类很多，总的分为先天性和后天性两大类。现分述如下：一、先天性异常血管（一）视乳头上视网膜血管襻又称为视乳头前血管襻，可分为动脉襻和静脉襻两种，也可一眼有动脉襻又有静脉襻。视乳... Abnormal blood vessels on the optic nerve head First Hospital of Beijing Medical University Eye Chen Yi Yi optic nerve abnormalities on the many types of blood vessels, the total is divided into two major categories of congenital and acquired. Are described as follows: First, the congenital abnormal blood vessels (A) of the optic nerve on the retina of the pannus, also known as papilla, can be divided into two kinds of arterial 襻 and vein 也 can also be a glance arterioles and venous 襻. Breast milk ...