《英文msh词典》Optic Disk Disorders
[同义词] Optic Disk Disorders
[主题词] Optic Nerve Diseases
[中文释义] 视盘障碍
[英文释义] Conditions which produce injury or dysfunction of the second cranial or optic nerve,which is generally considered a component of the central nervous system. Damage to optic nerve fibers may occur at or near their origin in the retina,at the optic disk,or in the nerve,optic chiasm,optic tract,or lateral geniculate nuclei. Clinical manifestations may include decreased visual acuity and contrast sensitivity,impaired color vision,and an afferent pupillary defect.