ciliary muscle


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ciliary muscle

[¦sil·ē‚er·ē ′məs·əl]
(anatomy)
The smooth muscle of the ciliary body.
References in periodicals archive ?
Chromium also aids in enhancing energy to the ciliary muscles necessary for eye focusing, which in turn relieves impetus for excessive eyeball elongation.
Compared with control subjects, those given 6 mg astaxanthin daily had improved blood flow to the small blood vessels in the retina, which is a specialized layer that transmits visual information reaching the back of the eye, and potentially to the ciliary muscle.
54) An alternative approach is the attempt to mimic more closely the accommodative mechanism of the eye by having a more flexible lOL, which can hinge forward on its haptics or change shape with the contraction of the ciliary muscle, allowing the lens capsule to contract.
Single-optic AIOL designs have been used most extensively to date, and are based on the passive-shift principle where ciliary muscle contraction initiates an anterior axial movement of the IOL optic, increasing the eye's refractive power.
In the early 1900s, physicians postulated that the tension of ciliary muscles pressed the crystalline lens against the vitreous body -- forcing the lens to flex and increase its curvature.
It was developed by a British ophthalmologist working in the USA (Stuart Cummings) who proposed that with accommodative effort, the ciliary muscle causes increased vitreous pressure that pushes the IOL forwards.
The Crystalens(TM) works by moving in a backwards and forwards motion along the axis of the eye in response to pressure changes in the front and back of the eye that result from relaxation and contraction of the ciliary muscle which is normally used to change the focus of the eye.
The lens adjusts backwards and forward in response to pressure changes in the front and back of the eye that result from relaxation and contraction of the ciliary muscle.
The Crystalens(TM) works by moving in a backwards and forwards fashion along the axis of the eye in response to pressure changes caused by the relaxation and contraction of the ciliary muscle which is normally used to change the focus of the eye.
Generally, Presby Corp's international patent portfolio relates to various techniques for increasing the effective working distance of the ciliary muscle in the presbyopic eye, such as laser irradiation to weaken or make incisions in the sclera or the use of any device for insertion in the sclera to achieve this result.
Adaptation of the eye for near vision work is accomplished by accommodation; the increase curvature of the lens through movement of the ciliary muscles.
In the human body, in which organ are the ciliary muscles situated: the eye or the liver?