1. Vascularity of lens capsule probably congenital;Brailey;Trans. Ophth. Soc. United Kingdom,1899
2. Remains of hyaloid vessels;Crisp;Amer. Journ. Ophth.,1920
3. De la persistance du cordon hyaloidien;Fournet;Rec. d'Opht.,1879
4. Fuchs, E. Text-book of Ophthalmology, 11 ed. Trans., A. Duane, 393, 1917.
5. Persistent hyaloid canal and artery;Gardiner;Arch. Ophth.,1880