Ciliary muscles


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Related to Ciliary muscles: retina, musculus ciliaris

Ciliary muscles

The small muscles that permit the lens to change its shape in order to focus on near or distant objects.
Mentioned in: Presbyopia
References in periodicals archive ?
9,10] One possible mechanism of eye elongation during accommodation can be attributed to ciliary muscle contraction leading to forward traction on choroid.
After adjustment for other factors, age was also related to a decrease in the diameter of the ring of ciliary muscles that change the shape of the lens in the process of accommodation.
Mechanism of anterior headache from contraction of ciliary muscles in hypermetropia of equal or different degrees where patients accommodate to see clearly, screwing of lids in myopia, and also iris muscle contraction and dilatation in flicker light, may cause more severe headache.
Dr Marco Ruggeri, assistant professor at Bascom Palmer Eye Institute, explained: "Although it is accepted that changes in the optical and mechanical properties of the crystalline lens are central to the onset of presbyopia, little is known about the role of the ciliary muscle and how it may, or may not, affect the loss of accommodation with age.
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?