The optic nerve head looks white ( glial scar ) and is surrounded by hyperpigmentation 视盘色苍白（胶质瘢痕） ，色素环绕。
2.
Melanocytoma of the optic disc is a benign primary tumor occurring within the optic nerve head 摘要视神经盘之黑素细胞瘤是原发于视神经头之良性肿瘤。
3.
Study of stereometric parameters of optic nerve head of normal eyes using heidelberg retina tomography 视网膜断层扫描仪对正常人群视乳头形态结构参数的测定
4.
The instrument enables the quantitative description of the optic nerve head topography and time - related changes to it 该仪器还能够对视觉神经头的走势图进行数量性描述以及其阶段性的变动。
