crystalline lens

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Related to crystalline lens: lens subluxation

crystalline lens

The lens of the eye in vertebrates and certain invertebrates.

crystalline lens

(Anatomy) a biconvex transparent elastic structure in the eye situated behind the iris, serving to focus images on the retina



n., pl. lens•es.
1. a piece of transparent substance, usu. glass, having two opposite surfaces either both curved or one curved and one plane, used in optical devices for changing the convergence of light rays, as for magnification, or in correcting defects of vision.
2. a combination of such pieces.
3. some analogous device, as for affecting sound waves, electromagnetic radiation, or streams of electrons.
4. a doubly convex, transparent body in the eye, behind the pupil, that focuses incident light on the retina.
5. a body of rock or ore that is thick in the middle and thinner toward the edges, similar in shape to a biconvex lens.
[1685–95; < New Latin; Latin lēns a lentil (a lens so called from its shape); compare lentil]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.crystalline lens - biconvex transparent body situated behind the iris in the eyecrystalline lens - biconvex transparent body situated behind the iris in the eye; its role (along with the cornea) is to focuses light on the retina
organ - a fully differentiated structural and functional unit in an animal that is specialized for some particular function
eye, oculus, optic - the organ of sight
lens cortex, cortex - the tissue that surrounds the lens nucleus
lens capsule - a tenuous mesoblastic membrane surrounding the lens of the eye

crys·tal·line lens

n. cristalino, lente del ojo.
References in periodicals archive ?
13 An intact normal crystalline lens, or a stable iris-artificial lens diaphragm after cataract surgery is protective for corneal endothelium.
7mm over a 60-year period, (14) and the crystalline lens thickens anteriorly at an average rate of 18-20 [miro]m per year.
In vertebrates the crystalline lens is a biconvex transparent structure, which helps light to focus on the retina.
Accommodation can be defined as the inherent property of the eyes to change the power of the crystalline lens to focus near objects clearly on the retina.
The PRESBYOPIA ERC-Advanced Grant investigates basic mechanisms of the crystalline lens accommodation, to propose nature-inspired designs to correct presbyopia, multifocal lenses in particular.
The Lensar Laser System was designed for patients seeking a premium vision outcome following the removal of their crystalline lens.
8, 9] Normally cataract occurs when normal crystalline lens loose its transparency due to ageing process.
The cataract is caused by the changes that happen on the crystalline lens fibers over time owing to the metabolic activities taking place inside the human body.
The ensuing contributions discuss a number of specific cell types, including ocular surface cells, corneal stromal keratocytes, endothelial cells, crystalline lens cells, and limbal cells, as well as the dynamics and induction of pluripotent cells, potential cell therapies, and gene therapy.
Richard Kratz, MD, DSci, is clinical professor of ophthalmology at the University of California, Irvine, and the University of Southern California (Los Angeles), Dr, Kratz pioneered the cataract-removal technique called phacoemulsification and developed intraocular lenses to replace the crystalline lens, He is currently involved in projects relating to glaucoma, cataract extraction, and facilitating eyesight for the totally blind,
Cataract extraction with implantation of a Posterior chamber intraocular lens (PCIOL) is a well-documented and well-established procedure for visual rehabilitation in cases of crystalline lens opacification.
Colour matching in diabetes: optical density of the crystalline lens and macular pigments.