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 ?
Laser System was designed for patients seeking a premium vision outcome following the removal of their crystalline lens.
UVB (280-315nm)--absorbed mainly at the corneal surface and so damage takes place within the cornea, the crystalline lens and sometimes the retina (1)
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.
Objective: Cataract is the opacification of the crystalline lens of the human eye.
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,
The effects of protective eyewear on glare and crystalline lens transparency.
They address pediatric cases, congenital subluxation of the crystalline lens, cataracts and glaucoma, pseudoexfoliation syndrome, phacoemulsifications with a small pupil, cataract surgery in age-related macular degeneration, brunescent cataract, and cataracts in high myopia, severe hyperopia, and retinitis pigmentosa.
A femtosecond laser can be used to create anterior capsulotomy (a type of eye surgery in which an incision made into the capsule of the crystalline lens of the eye), effect phacofragmentation (rupture and aspiration of the lens), or make a variety of incisions during ocular surgery.
Cataracts are caused by cloudiness in the crystalline lens of the eye and can vary from partial to complete opacity.
The Slit Lamp facilitates an examination of the frontal structures and posterior segment of the human eye, including the eyelid, sclera, conjunctiva, iris, natural crystalline lens, and cornea.
A cataract is a clouding that develops in the crystalline lens or in the cornea.
For some, however, newer implantable contact lenses (ICLs), or Visian lenses, that surgeons place in front of the eye's natural crystalline lens may be an even better choice.