anterior chamber


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Related to anterior chamber: Posterior chamber, anterior chamber angle

chamber

 [chām´ber]
an enclosed space.
Chambers of the eye. From Dorland's, 2000.
anterior chamber the part of the aqueous humor-containing space of the eyeball between the cornea and iris.
counting chamber the part of a hemacytometer consisting of a microscopic slide with a depression whose base is marked in grids, and into which a measured volume of a sample of blood or bacterial culture is placed and covered with a cover glass. The number of cells and formed blood elements in the squares is counted under a microscope and used as a representative sample for calculating the unit volume.
drip chamber the expanded portion of intravenous tubing into which fluid falls, where the rate of flow can be monitored if necessary. See also intravenous infusion.
hyperbaric chamber an enclosed space in which gas (oxygen) can be raised to greater than atmospheric pressure; see also hyperbaric oxygenation.
ionization chamber an enclosure containing two or more electrodes between which an electric current may be passed when the enclosed gas is ionized by radiation; used for determining the intensity of x-rays and other rays.
posterior chamber that part of the aqueous humor–containing space of the eyeball between the iris and the lens.
vitreous chamber the vitreous humor–containing space in the eyeball, bounded anteriorly by the lens and ciliary body and posteriorly by the posterior wall of the eyeball.

anterior chamber

(ăn-tîr′ē-ər)
n.
The space between the cornea and the iris of the eye, filled with the aqueous humor and communicating through the pupil with the posterior chamber.

anterior chamber

Etymology: L, ante + prior, foremost; Gk, kamara, an arched cover
the part of the anterior cavity of the eye in front of the iris. It contains the aqueous humor.

anterior segment

The segment of the eyeball (globe) formed by invasion of neural crest cells into the space between the surface ectoderm and the lens vesicle, which develops into corneal epithelium and lens vesicle. The anterior segment is susceptible to lacerations, swelling, trauma and foreign bodies. 

Components
Sclera, conjunctiva.

anterior

situated at or directed toward the front; opposite of posterior. In quadrupeds the use of the term is limited to parts of the head but is often used to mean cranially. In bipeds such as humans it is synonymous with ventral.

anterior abdomen pain
elicited pain in the anterior abdomen caused, in cattle, by reticulitis, hepatic or splenic abscess, abomasal ulcer and intestinal obstruction.
anterior chamber
the part of the eyeball between the cornea and the iris, filled with aqueous humor.
anterior chamber angle
see iridocorneal angle.
anterior compartment
chamber of the eye bounded by the iris and cornea; contains the aqueous humor as it moves to the filtration angle; called also anterior chamber.
anterior cruciate ligament
see cranial (anterior) cruciate ligament.
anterior (cranial) drawer sign
cranial, nonrotary movement of the proximal tibia in relation to the distal femur. Normally restricted by the cranial (anterior) cruciate ligament and used as a diagnostic test for rupture of that structure.
anterior epithelial layer
of the cornea is a noncornified, stratified, squamous epithelium, continuous with the bulbar conjunctival epithelium.
anterior functional stenosis
achalasia of the reticulo-omasal sphincter causing ingesta to accumulate in the reticulorumen.
anterior limiting membrane
of the cornea is a combination of the basement membrane, a felted layer of fine collagen fibers; substantial only in primates.
anterior pituitary
anterior pituitary hormones
anterior station trypanosomes
a section of the genus Trypanosoma in which the infectious stages accumulate in the mouthparts and salivary glands of the intermediate host so that the parasite is transmitted when the insect vector takes a blood meal. Called also Salivaria. See also posterior station trypanosomes.
anterior vena cava
see vena cava.

chamber

an enclosed space.

anterior chamber
the part of the aqueous humor-containing space of the eyeball between the cornea and iris.
hyperbaric chamber
an enclosed space in which gas (oxygen) can be raised to greater than atmospheric pressure. See also hyperbaric oxygenation.
ionization chamber
see ionization chamber.
posterior chamber
that part of the aqueous humor-containing space of the eyeball between the iris and the lens.
vitreous chamber
the vitreous humor-containing space in the eyeball, bounded anteriorly by the lens and ciliary body and posteriorly by the posterior wall of the eyeball.
References in periodicals archive ?
Although a definitive diagnosis of aqueous misdirection was not made in this owl, a shallow anterior chamber due to anterior displacement of the lens-iris diaphragm, as well as a rapid correction of ocular hypertension and anterior chamber depth in response to mannitol and dorzolamide were highly supportive of this diagnosis.
However massive choroidal invasion and anterior chamber invasion were not significant risk factors for an adverse event in the present study.
We assigned the worm found in the anterior chamber of the eye of the patient to the genus Pelecitus (6).
The tumor was present in the anterior chamber and implanted into the iris (Figure 4, A).
Patients with active uveitis had[greater than or equal to]1 of the following: active, inflammatory chorioretinal or retinal vascular lesion; anterior chamber (AC) cell grade[greater than or equal to]2+; or vitreous haze (VH) grade[greater than or equal to]2+.
Hassaballa and Macky retrospectively compared the outcomes of the Artisan anterior chamber IOL and the Visian ICL in 68 highly myopic eyes of 34 patients.
Anticipated therapeutic concentrations of ESBATech's antibody fragments were observed in the anterior chamber (front of the eye) and in the posterior segments (back of the eye) including vitreous humour, retina, and choroid.
An anterior chamber paracentesis may be performed if indicated by clinical findings and is not associated with risk of tumor seeding.
TR-ClarifEYE is a surgically implanted veterinary device that relieves the elevated ocular pressure accompanying glaucoma by restoring outflow of intraocular fluid from the anterior chamber of the eye to the surrounding vascular network.
The device provides a quick and simple method of shunting aqueous humor from the anterior chamber to a diffuse bleb without the need for a scleral flap.
d/ The anterior chamber should be examined for evidence of inflammation
The injectable form of HA is primarily administered in pre-filled syringes for three medical applications: Cataract surgeries, during which the substance is injected to expand the anterior chamber of the eyeball; osteoarthritis, for which hyaluronic acid lubricates joints during movement; and as a dermal filler, when the acid is injected into the skin to reduce wrinkles, fine lines, and scars.

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