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Related to secondary vitreous: vitreous body
avascular vitreous formed around the primary vitreous.
1. glasslike or hyaline.
2. the vitreous body.
see vitreous body.
an opacity of the vitreous which occurs with uveitis.
a small opacity in the vitreous which may stimulate the retina and cause abnormal behavior patterns such as 'fly-biting'.
1. vitreous body.
2. the watery substance contained within the interstices of the stroma in the vitreous body.
that adjacent to the optic disk.
persistent hyperplastic vitreous
a congenital anomaly, usually unilateral, due to persistence of embryonic remnants of the fibromuscular tunic of the eye and part of the hyaloid vascular system. Clinically, there is a white pupil, elongated ciliary processes, and often microphthalmia; the lens, although clear initially, may become completely opaque.
1. Descemet's membrane.
2. hyaline membrane (1).
3. Bruch's membrane.
4. a delicate boundary layer investing the vitreous body.
the first stage in development of the vitreous; it persists in the adult as Cloquet's canal.
the secondary stage in development of the vitreous; an avascular mass secreted by the retinal ectoderm.
the third and final stage of development of the vitreous; it is secreted by the ciliary epithelium and persists in the adult as the suspensory ligament of the lens.
curtain-like opacities seen in a normal vitreous.