The lens capsule is a component of the This article refers to the sight organ. ...eye. It is a clear, This article or section should include material from Net flux A membrane is a thin, typically planar structure or material that separates two environments. ...membrane_like structure that is quite elastic, a quality that keeps it under constant tension. As a result, the lens naturally tends towards a rounder or more globular configuration, a shape it must assume for the eye to The word focus (pl. ...focus at a near distance.
The lens is nourished during embryologic life by the tunica vasculosa lentis, which posteriorly is comprised of the hyaloid artery (a part of the primary vitreous), and anteriorly by the embryologic pupillary membrane.
The lens fibers are produced at the equator and compressed toward the nucleus as new cells are formed thus contributing to leticular sclerosis.
Lens metabolism is most active at the equator and mediated predominantly by anaerobic glycolysis, and to a lesser extent, by the hexose monophosphate shunt, sorbitol pathway, and the Krebs cycle.
Laser posterior capsulotomy, or YAG laser capsulotomy, is a noninvasive procedure performed on the eye to remove the opacification (cloudiness) that develops on the posterior capsule of the lens of the eye after extraction of a cataract.
One form of PCO is a fibrosis that forms inside the capsule by lens epithelial (covering) cells that migrate from the anterior capsule to the posterior capsule when the anterior lenscapsule is opened to remove the primary cataract and insert the IOL.
The greatest capsule opacification is found around the edges of the IOL, where the anterior and posterior lenscapsules adhere and form a seam, called Soemmering's ring.
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