American Heritage® Dictionary of the English Language, Fourth Edition
- adj. Glassy or transparent in appearance; hyaline.
Century Dictionary and Cyclopedia
- Hyaline; transparent; glassy.
- n. The hyaloid membrane.
GNU Webster's 1913
- adj. (Anat.) Resembling glass; vitriform; transparent; hyaline.
- n. the transparent membrane enveloping the vitreous humor of the eye and separating it from the retina
- adj. resembling glass in transparency or translucency
- Greek hualoeidēs : hualos, glass + -oeidēs, -oid. (American Heritage® Dictionary of the English Language, Fourth Edition)
“Its outer surface is in contact with the choroid; its inner with the hyaloid membrane of the vitreous body.”
“The artery immediately bifurcates into an upper and a lower branch, and each of these again divides into a medial or nasal and a lateral or temporal branch, which at first run between the hyaloid membrane and the nervous layer; but they soon enter the latter, and pass forward, dividing dichotomously.”
“By the sixth month all the vessels of the capsule are atrophied except the hyaloid artery, which disappears during the ninth month; the position of this artery is indicated in the adult by the hyaloid canal, which reaches from the optic disk to the posterior surface of the lens.”
“By the second month the lens is invested by a vascular mesodermal capsule, the capsula vasculosa lentis; the bloodvessels supplying the posterior part of this capsule are derived from the hyaloid artery; those for the anterior part from the anterior ciliary arteries; the portion of the capsule which covers the front of the lens is named the pupillary membrane.”
“The zonula ciliaris splits into two layers, one of which is thin and lines the hyaloid fossa; the other is named the suspensory ligament of the lens: it is thicker, and passes over the ciliary body to be attached to the capsule of the lens a short distance in front of its equator.”
“It is transparent, of the consistence of thin jelly, and is composed of an albuminous fluid enclosed in a delicate transparent membrane, the hyaloid membrane.”
“It fills the concavity of the retina, and is hollowed in front, forming a deep concavity, the hyaloid fossa, for the reception of the lens.”
“It rests, behind, in the hyaloid fossa in the forepart of the vitreous body; in front, it is in contact with the free border of the iris, but recedes from it at the circumference, thus forming the posterior chamber of the eye; it is retained in its position chiefly by the suspensory ligament of the lens, already described.”
“In the center of the vitreous body, running from the entrance of the optic nerve to the posterior surface of the lens, is a canal, the hyaloid canal, filled with lymph and lined by a prolongation of the hyaloid membrane.”
“They are like two balls of fire, and there is a peculiar transparency of the hyaloid membrane, or injection of that of the retina.”
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