Paralysis of the ciliary muscle of the eye impeding accommodation.
Cycloplegia may be induced by cycloplegic drugs to facilitate eye examinations.
Paralysis of the ciliary muscle of the EYE, which results in the loss of the power of ACCOMMODATION in the eye.
n. paralysis of the ciliary muscle of the eye (see ciliary body). This causes inability to alter the focus of the eye and is usually accompanied by paralysis of the muscles of the iris, resulting in fixed dilation of the pupil (mydriasis). It is induced by the use of atropine or similar drugs in order to inactivate the muscle in cases of inflammation of the iris and ciliary body and to objectively assess the refractive status of the eye, particularly in children. It may also occur after injuries to the eye.
A group of drugs used to treat uveitis and to dilate the pupil during examination of the inside of the eye and for surgery. Mydriatics work by relaxing the circular muscles of the iris, causing the pupil to dilate. Common mydriatic drugs include tropicamide, cyclopentolate, homatropine, and phenylephrine. (See also cycloplegia; miotic drugs.)... mydriatic drugs
n. an *antimuscarinic drug that occurs in deadly nightshade (see belladonna). Because it dilates the pupil and paralyses the ciliary muscle (see cycloplegia; mydriatic), atropine is used in eye examinations and the treatment of anterior *uveitis. It is also administered by injection to treat a slow heart rate (*bradycardia) associated with arrhythmias or, with *neostigmine, to reverse the action of muscle relaxants used during surgery. It is sometimes used to treat gut spasms and – rarely – for *premedication. Common side-effects include dryness of the throat, thirst, impaired vision, and increased heart rate.... atropine
n. paralysis of the iris, which is usually associated with *cycloplegia and results from injury, inflammation, or the use of pupil-dilating eye drops. In the case of injury, the pupil is usually larger than normal and moves little, if at all, in response to light and drugs.... iridoplegia
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