abnormal eye development abnormal hyaloid artery morphology 2014-01-02T11:32:58Z MP:0012537 MPheno.ontology abnormal arteria hyaloidea morphology any structural anomaly of the artery which arises from the dorsal ophthalmic artery and enters the eye cup through the optic (choroid) fissure; the hyaloid artery is contained within the optic stalk of the eye, extends from the optic disc through the vitreous humor to the lens, and serves to supply nutrients to the developing lens in the growing fetus; it usually regresses (around 2 weeks after birth in mice and before birth in humans), with its proximal portion remaining as the central artery of the retina; regression of the hyaloid artery leaves a clear central zone through the vitreous humor, called the hyaloid canal or Cloquet's canal csmith