1. Cone. 2. Posterior staphyloma in myopic chorioiditis.
Marginal crescent of optic disc.
Any cone-shaped structure, as the conus arteriosus, a structure between the ventricle and aorta in fishes and amphibians; the diverticulum of the right ventricle from which the pulmonary artery arises; conus medullaris, the tapering end of the spinal cord.
Posterior staphyloma of the myopic eye.
A cone or a coneshaped body.
A posterior staphyloma, so-called, crescentic in shape and seen on one or the other side of the optic disk, usually the temporal. It is a thinning or atrophy of the choroid stroma, including the pigment, which allows the white sclera to become visible.