Anterior segment

Anterior segment

Infobox Anatomy
Name = PAGENAME
Latin = segmentum anterius bulbi oculi
GraySubject =
GrayPage =


Caption = Human Eye Anterior Segment - Magnified view seen on examination with a slit lamp under diffuse illumination showing conjunctiva overlying the white sclera, transparent cornea, pharmacologically dilated pupil and cataract


Caption2 = Schematic diagram of the human eye.


MapPos =
MapCaption =
Precursor =
System =
Artery =
Vein =
Nerve =
Lymph =
MeshName =
MeshNumber =
DorlandsPre = s_07
DorlandsSuf = 13264628
The anterior segment is the front third of the eye that includes the structures in front of the vitreous humour: the cornea, iris, ciliary body, and lens.Cassin, B. and Solomon, S. "Dictionary of Eye Terminology". Gainsville, Florida: Triad Publishing Company, 1990.] [http://www.clinica-cotero.es/i/2-1-1.htm "Departments. Anterior segment."] Cantabrian Institute of Ophthalmology.]

Within the anterior segment are two fluid-filled spaces:
* the anterior chamber between the posterior surface of the cornea (i.e. the corneal endothelium) and the iris.
* the posterior chamber between the iris and the front face of the vitreous.

Aqueous humor fills these spaces within the anterior segment and provides nutrients to the surrounding structures.

Some ophthalmologists specialize in the treatment and management of anterior segment disorders and diseases.

References

ee also

*List of eye diseases and disorders
*Posterior segment


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • Anterior segment mesenchymal dysgenesis — Classification and external resources OMIM 107250 Anterior segment dysgenesis (ASD) is a failure of the normal development of the tissues of the anterior segment of the eye. It leads to anomalies in the structure of the mature anterior segment,… …   Wikipedia

  • anterior segment of eye — anterior segment of eyeball segmentum anterius bulbi oculi …   Medical dictionary

  • Toxic Anterior Segment Syndrome — (TASS) is an acute, sterile anterior segment inflammation following generally uneventful cataract and anterior segment surgery. One of the main factors in differentiating TASS from an infectious endophthalmitis is the rapid onset. Most patients… …   Wikipedia

  • segment — 1. A section; a part of an organ or other structure delimited naturally, artificially, or by invagination from the remainder. SYN: segmentum [TA]. SEE ALSO: metamere. 2. A territory of an organ having independent function, supply, or drainage. 3 …   Medical dictionary

  • segment — n. (in anatomy) a portion of a tissue or organ, usually distinguishable from other portions by lines of demarcation. For example, the uterus consists of upper and lower segments. The anterior segment of the eye is the front portion, including the …   The new mediacal dictionary

  • Anterior chamber — The anterior chamber is the fluid filled space inside the eye between the iris and the cornea s innermost surface, the endothelium. [cite book |author=Cassin, B. and Solomon, S. |title=Dictionary of eye terminology |publisher=Triad Pub. Co… …   Wikipedia

  • Anterior cruciate ligament reconstruction — (ACL reconstruction) is a surgical tissue graft replacement of the anterior cruciate ligament, located in the knee, to restore its function after anterior cruciate ligament injury. The torn ligament is removed from the knee before the graft is… …   Wikipedia

  • anterior apophyses — (ARTHROPODA: Insecta) In female Lepidoptera, a pair of slender chitinized internal rods extending anteriorly from the ninth abdominal segment …   Dictionary of invertebrate zoology

  • segment-polarity gene — A segmentation gene, responsible for specifying anterior posterior polarity within individual embryonic segments. In Drosophila, there are at least 10 such genes, for example gooseberry …   Dictionary of molecular biology

  • segment-polarity gene — A gene that functions to define the anterior and posterior components of body segments in Drosophila …   Glossary of Biotechnology

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”