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 ?
The mechanisms of action of astaxanthin in reducing eyestrain may include improved blood flow to the ciliary muscles controlling accommodation, as well as anti-inflammatory and antioxidant effects.
When the ciliary muscle within the ciliary body relaxes, it flattens the lens, allowing us a broader, more panoramic view.
Anterior/posterior lens movement: The primary mechanism of accommodation, resulted, as intended in the crystalens' design, from contraction of the eye's natural ciliary muscle to which the crystalens is attached; Accommodative arching: The flexing of the lens that results in refractive power changes and provided a secondary, additive effect to the crystalens' natural focusing ability -- the first time scientific data have confirmed this hypothesis; and Sustained accommodative effect: No significant differences in near and distance visual acuities were reported between one- and three-year intervals among subjects in the clinical trial that led to FDA approval of the crystalens.
There is experimental evidence that nitric oxide may play a role in controlling IOP through specific mechanisms, including relaxation of the ciliary muscles and other structures which allow fluid to drain from the eye.