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Topic: Ciliary body

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In the News (Tue 21 May 19)

  Ciliary body - Wikipedia, the free encyclopedia
The ciliary body is the part of the eye containing the ciliary muscle and ciliary processes.
They are attached to the lens by connective tissue called the zonule of Zinn, and are responsible for shaping the lens to focus light on the retina.
When the ciliary muscle relaxes, it flattens the lens which generally improves the focus for farther objects.
en.wikipedia.org /wiki/Ciliary_body   (135 words)

 Uvea - Wikipedia, the free encyclopedia
It is traditionally divided into 3 or 4 regions, the iris, ciliary body, pars plana and choroid.
For clinical use, the terms anterior uvea (ie, iris and ciliary body) and posterior uvea (ie, choroid) are now in common use, since diseases often spread beyond a single anatomical region of the uvea.
Uveal vessels directly perfuse the ciliary body and iris, to support their metabolic needs, and indirectly supply diffusible nutrients to the outer retina, cornea and lens, which lack any intrinsic blood supply.
en.wikipedia.org /wiki/Uvea   (740 words)

 FAHERS 211 The iris and ciliary body Dr P.McMenamin 1998   (Site not responding. Last check: 2007-10-19)
It is suspended in the frontal or coronal plane anterior to the lens and ciliary body and surrounded by aqueous humour.
The ciliary body is an approximately 5-6mm wide ring of tissue that extends from the scleral spur anteriorly to the ora serrata posteriorly.
The anterior two-thirds of the ciliary body is occupied by the ciliary muscle which in conjunction with the lens zonules (suspensory ligament) and the natural elastic nature of the lens capsule functions to alter the refractive power of the lens.
www.lab.anhb.uwa.edu.au /vsci/IRISCB.htm   (1476 words)

 Blue Histology - The Eye
The Vascular Tunic: Choroid, Ciliary Body and Iris
The ciliary body is an inward extension of the choroidea at the level of the lens.
The inner surface of the ciliary body and its processes are lined by two layers of columnar cells which belong to the retina - the ciliary epithelium formed by the pars ciliaris of the retina.
www.lab.anhb.uwa.edu.au /mb140/CorePages/eye/eye.htm   (2792 words)

 Ciliary Body : RPResearch
Melanoma, Ciliary Body - Ciliary body melanoma is a subtype of uveal melanoma.
The Ciliary Body and Iris The ciliary body is formed from the two layers comprising the rim of the optic cup, which undergo folding to form the ciliary processes.
Part of the eye, the ciliary body is a thin vascular (blood vessel-filled) middle layer of the eye that is situated between the sclera (the white of the eye) and the retina (the nerve l...
www.rpresearch.ca /?Top=Ciliary+Body   (327 words)

 MERSI Ocular Immunology and Uveitis Foundation| Patient Information | Glossary
The choroid connects with the ciliary body toward the front of the eye and is attached to edges of the optic nerve at the back of the eye.
The ciliary body is divisible into two parts: the pars plana and the pars plicata anteriorly.
The ciliary body attaches to the iris at the iris root, and, at the ora serrata, posteriorly, the ciliary body joins the posterior continuation of the uvea, the choroid.
www.uveitis.org /patient/glossary/a_f.html   (4315 words)

 The Ciliary Body and Iris
The ciliary body is formed from the two layers comprising the rim of the optic cup, which undergo folding to form the ciliary processes.
Mesenchyme located at the edge of the optic cup gives rise to the connective tissue of the ciliary body, the smooth muscle fibres of the ciliary muscle and the suspensory ligaments of the lens.
The sphincter and dilator pupillae muscles form from the ectoderm of the optic cup and are situated in the mesenchyme at the edge of the anterior portion of the optic cup.
www.vision.ca /eye/ciliary_iris.html   (246 words)

 Ciliary body
The ciliary body is a ring of tissue that encircles the lens.
The ciliary body contains smooth muscle fibers called ciliary muscles that help to control the shape of the lens.
Towards the posterior surface of the lens there are ciliary processes which contain capillaries.
www.stv.org /adam/encyclopedia/imagepages/9188.htm   (132 words)

 Gray's Anatomy of the Human Body - The Tunics of the Eye - Yahoo! Education   (Site not responding. Last check: 2007-10-19)
The ciliary processes (processus ciliares) are formed by the inward folding of the various layers of the choroid, i.e., the choroid proper and the lamina basalis, and are received between corresponding foldings of the suspensory ligament of the lens.
They are attached by their periphery to three or four of the ridges of the orbiculus ciliaris, and are continuous with the layers of the choroid: their opposite extremities are free and rounded, and are directed toward the posterior chamber of the eyeball and circumference of the lens.
By its periphery it is continuous with the ciliary body, and is also connected with the posterior elastic lamina of the cornea by means of the pectinate ligament; its surfaces are flattened, and look forward and backward, the anterior toward the cornea, the posterior toward the ciliary processes and lens.
messenger.yahooligans.com /reference/gray/subjects/subject?id=225   (5607 words)

 Anat & Phys   (Site not responding. Last check: 2007-10-19)
It is suspended anterior to the lens and ciliary body and is surrounded by the aqueous humor.
During accommodation when the ciliary muscle contracts, there is an anterior and inward shift of the ciliary body which serves to release tension on the zonules.
It is bound by the lens, posterior zonules, and ciliary body anteriorly.
hubnet.buffalo.edu /ophthalmology/site/Home/Anat___Phys/anat___phys.html   (1850 words)

 Ciliary body PDT by MK Tsilimbaris et.al   (Site not responding. Last check: 2007-10-19)
We investigated the hypotensive effect of ciliary body PDT in the eyes of 30 pigmented rabbits after single (n=25) and repeated (n=5) treatment.
Ciliary body was irradiated transsclerally by means of an optic fiber applied on the corneoscleral limbus.
All changes, however were temporary; after 15 days the appearance of the ciliary body had returned to normal both in single treated and retreated animals.
www.netsci-journal.com /97v3/tsilimbaris   (290 words)

 eMedicine - Melanoma, Ciliary Body : Article by Enrique Garcia-Valenzuela, MD, PhD   (Site not responding. Last check: 2007-10-19)
Pathophysiology: Primary ciliary body melanoma arises from melanocytes in the uveal tract.
Ciliary body melanomas cause partial or total visual loss in the affected eye, from direct pathological involvement of ocular structures or as a result of the treatment used.
Ciliary body melanoma is a disease with a high mortality rate, usually irrespective of the chosen treatment modality.
www.emedicine.com /oph/topic404.htm   (4419 words)

 Ciliary Body Melanoma Masquerading as Chronic Uveitis   (Site not responding. Last check: 2007-10-19)
Stephen Foster, M.D. The incidence of uveal melanoma is about six per million per year; 80% in the choroid, 12% in the ciliary body, and 8% in the iris.
During the surgery, we detected a brownish lesion in the ciliary body, at the 12 o'clock position, suggestive of a melanoma.
Evaluation by the retinal oncologists confirmed the suspicion that the mass was probably a ciliary body melanoma.
www.uveitis.org /WebEyeMD_htmbank/CBmelanoma.htm   (674 words)

 Ciliary body adenoma of non-pigmented epithelium -- Mansoor and Qureshi 57 (9): 997 -- Journal of Clinical Pathology
as adenomas and carcinomas of the ciliary epithelium.
The remarkable polymorphism of tumors of the ciliary epithelium.
Acquired neoplasm of the non-pigmented ciliary epithelium (adenoma and adenocarcinoma).
jcp.bmjjournals.com /cgi/content/full/57/9/997   (633 words)

 Ultrasound biomicroscopic study of ciliary body changes in the post-treatment phase of Vogt-Koyanagi-Harada disease -- ...
of the ciliary body stroma, the obscured appearance of the ciliary
ciliary body in the active phase and its regression in the remission
Serous detachment of the ciliary body in Harada disease.
bjo.bmjjournals.com /cgi/content/full/86/12/1374   (3423 words)

 ciliary body - Hutchinson encyclopedia article about ciliary body   (Site not responding. Last check: 2007-10-19)
The ciliary muscles contract and relax to change the shape of the lens during accommodation.
The ciliary body is lined with cells that secrete aqueous humour into the anterior chamber of the eye.
This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.
encyclopedia.farlex.com /ciliary+body   (108 words)

 Zonules of Zinn : RPResearch
A B. to the ciliary body by fibers (zonules of Zinn).
The suspensory ligaments (zonules of Zinn) are radially arranged fibers that suspend the lens from the ciliary body and hold it in position.
The lens is attached to the ciliary body by fibers (zonules of Zinn).
www.rpresearch.ca /?Top=Zonules%20of%20Zinn   (832 words)

 Accommodation dynamics in aging rhesus monkeys -- Croft et al. 275 (6): 1885 -- AJP - Regulatory, Integrative and ...
Ciliary body movement during accommodation in the young animals was biphasic, with an initial rapid and a subsequent slower
The ciliary muscle might be restricted due to the posterior tendons becoming fixed and rigid (56) or fixed and flaccid (3).
the decline of ciliary body response amplitude (Fig.
ajpregu.physiology.org /cgi/content/full/275/6/R1885   (6473 words)

 Literature: Abstracts: 30-Pavlin, Rutnin, Devenyi, Wand, Foster 1997 [UBM Web]   (Site not responding. Last check: 2007-10-19)
Ciliary body thickness measurements at a point 2-mm posterior to the scleral spur increased after surgery in all patients an average of 0.15 +/- 0.10 mm.
There was a strong correlation between ciliary fluid levels and change in ciliary body thickness (r = 0.742, P 0.01).
In all of these 11 patients, the ciliary body and iris root were considered to be rotated anteriorly.
www.eyeubm.com /pavlin.lit/abstract/30.htm   (275 words)

In both cases changes of the iris appeared and the diagnosis was then changed to "ciliary body melanoma".
A tumor of the ciliary body (pseudotumor) with 1 mm diameter was diagnosed as the cause of bleeding and photocoagulation was performed.
Conclusion: Ringmelanoma or bleeding melanomas of the ciliary body are rare, but in doubtful cases of unilateral glaucoma with unknown ethiology of dense pigmentation of the iridocorneal angle or unknown reason for vitreous bleeding, the diagnosis melanoma of the ciliary body should be considered.
www.dog.org /1999/e-abstract99/613.html   (285 words)

 Intraocular Melanoma (Cancer of the Eye): Definition, Symptoms, and Treatment - Kellogg Eye Center
If melanoma is in the ciliary body or the choroid, a person may have blurry vision or may have no symptoms, and the cancer may grow before it is noticed.
As the tumor enlarges, the tumor may cause distortion of the pupil (iris melanoma), blurred vision (ciliary body melanoma) or markedly decreased visual acuity from a secondary retinal detachment caused by a choroidal melanoma.
An iridocyclectomy refers to part of the iris and the adjacent ciliary body where the tumor is present.
www.kellogg.umich.edu /patientcare/conditions/intraocular.melanoma.html   (1172 words)

 Ophthalmology Review: Ciliary Body Edema after Scleral Buckling Surgery for Rhegmatogenous Retinal Detachment
It is supposed that compression by the local scleral buckling induces ciliary body edema and angle narrowing.
Ciliary body thickness and ACD were measured before and 3, 7, 14, and 28 days after the procedure.
The ciliary body in the direction of scleral buckling showed greater edema than the other areas.
www.noorvision.com /weblog/archives/2006/01/ciliary_body_ed_1.html   (242 words)

 Ciliary body - eye anatomy
Nourishment for the ciliary body comes from blood vessels which also supply the iris.
One function of the ciliary body is the production of aqueous humor, the clear fluid that fills the front of the eye.
This occurs as the ciliary body muscle and lens gradually lose elasticity, causing difficulty reading.
www.stlukeseye.com /anatomy/Ciliary.asp   (164 words)

 Roles of cell-adhesion molecules nectin 1 and nectin 3 in ciliary body development -- Inagaki et al. 132 (7): 1525 -- ...
epithelia of the ciliary body is impaired in nectin 1
ciliary epithelia and colocalized with that for ZO-1 (Fig.
in the pigment and non-pigment epithelia of the ciliary body.
dev.biologists.org /cgi/content/full/132/7/1525   (6091 words)

 Ciliary Body   (Site not responding. Last check: 2007-10-19)
The CILIARY BODY is a part of the eye which serves two purposes.
The fluid that fills the eye is made inside the ciliary body.
The ciliary body is also made up of muscles which allow the eye to focus at different distances.
www.gansmart.com /medinfo/sf/cilbod.htm   (43 words)

 Beta B1-Crystallin: Identification of a Candidate Ciliary Body Uveitis Antigen -- Stempel et al. 44 (1): 203 -- ...   (Site not responding. Last check: 2007-10-19)
of the ciliary body and iris is observed early in the course
Human ciliary body extracts were prepared and separated on a 12% SDS-polyacrylamide gel, transferred to a nitrocellulose filter, and analyzed for reactivity.
Rabbit ciliary body was harvested, separated into the nonpigmented and pigmented epithelium, cultured on coverslips, fixed, and stained by indirect immunofluorescence.
www.iovs.org /cgi/content/full/44/1/203   (4342 words)

 BMP signaling is required for development of the ciliary body -- Zhao et al. 129 (19): 4435 -- Development
Altered morphogenesis of the ciliary epithelium in CPV2-Noggin transgenic mice.
The choroid plexus in the brain and the ciliary body in the
Development of the avian iris and ciliary body: the role of activin and follistatin in coordination of the smooth-to-striated muscle transition.
dev.biologists.org /cgi/content/full/129/19/4435   (4891 words)

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