A channel within the vitreous humor of the eye. It extends from the center of the optic disk, where it communicates with the lymph spaces of the optic nerve, to the posterior wall of the lens.
Canalis hyaloideus; a canal in the vitreous body of the eye extending from the optic papilla to the central posterior surface of the lens. It serves as a lymph channel. In the fetus the canal contains the hyaloid artery. This normally disappears 6 weeks before birth.