Ophthalmoscopic abnormalities of the optic disk may signal the presence of acquired intracranial disease; or the disk anomaly may be congenital and only mimic an acquired disk change; or the disk anomaly may be acquired but caused by a purely ocular disease. The abnormal disk may be elevated, excavated, or flat and may be abnormal in color, contour, or size.
视盘的检眼镜异常可能预示存在后天性颅内疾病;或者视盘异常可能是先天性的,只是模仿后天性视盘改变;又或者视盘异常可能是后天获得性的,但由单纯的眼部疾病引起。异常视盘可能隆起、凹陷或扁平,并且在颜色、轮廓或大小方面可能异常。