神 经 冲 动 传 导 方 向
视神经
Ganglion cells
光
的 Bipolar neurons 传
入
Rod cells
方 向
Cone cells
Pigment cell layer
• Four branches: superior and inferior nasal or temporal arteriole of retina
• Sheath of eyeball 眼球筋膜鞘: a thin membrane, which surrounds the eyeball from optic nerve to corneoscleral junction, permits the eyeball to move in the orbit without friction
Ophthalmic vein 眼静脉
• Superior ophthalmic vein communicates with facial vein anteriorly, exits posteriorly via superior orbital fissure to drain into cavernous sinus
The Visual Organ 视器
Composition: eyeball and accessory organs of eye
组成:眼球和眼副器
眼轴 视轴
Walls of eyeball
Cornea 角膜
Fibrous tunic of eyeball
纤维膜
Sclera 巩膜
Vascular tunic of eyeball 血管膜
黄斑
视神经盘