It is enveloped by a delicate capsule-the hyaloid membrane-which is connected in front with the suspensory ligament of the lens, and ends by joining the capsule behind the lens.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
It is in contact with the surface of the retina at the back and with the attachments of the lens in front, being surrounded by a thin covering of its own, called the hyaloid membrane.
"Physiology and Hygiene for Secondary Schools"
Francis M. Walters, A.M.