optic pit


op·tic pit

a congenital anomaly characterized by a focal depression of the temporal optic nerve head.

optic pit

A small indentation of the optic nerve head. It may sometimes release fluid below the retina, which can cause central retinal detachment. See also: pit

pit, optic 

A depression on each side of the end of the neural ectoderm (or neural tube) of the embryo. The pit deepens to form the optic vesicle. Syn. optic sulcus.