mydriatic


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Related to mydriatic: anticholinergic, atropine

mydriatic

 [mid″re-at´ik]
1. dilating the pupil.
2. a drug that dilates the pupil.

myd·ri·at·ic

(mid'rē-at'ik),
1. Causing mydriasis or dilation of the pupil.
2. An agent that dilates the pupil.

mydriatic

(mĭd′rē-ăt′ĭk)
adj.
Causing dilatation of the pupils.
n.
A mydriatic drug.

myd·ri·at·ic

(mid'rē-at'ik)
1. Causing mydriasis or dilation of the pupil.
2. An agent that dilates the pupil.

mydriatic

1. Causing mydriasis of the pupil. 2. A drug which produces mydriasis. Mydriatics are used to carry out a thorough inspection of the fundus and lens, especially in elderly patients in whom the pupils are usually smaller. However, in older people it must be ascertained that the patient does not have glaucoma. There are two classes of mydriatics: (1) antimuscarinic (parasympatholytic, anticholinergic, atropine-like) drugs which antagonize the action of acetylcholine at muscarinic receptors in the ciliary muscle, such as atropine, cyclopentolate, homatropine, hyoscine (scopolamine) and tropicamide. Antimuscarinic drugs produce cycloplegia as well. (2) sympathomimetic (adrenergic stimulating) drugs which directly or indirectly stimulate the dilator pupillae muscle which is innervated by the sympathetic division of the autonomic nervous system. These include cocaine, ephedrine hydrochloride, adrenaline (epinephrine), naphazoline and phenylephrine hydrochloride. See adrenergic receptors; cholinergic; cycloplegia; miotics; dilator pupillae muscle; mydriasis; pupil light reflex; sympathomimetic.

myd·ri·at·ic

(mid'rē-at'ik)
1. Causing mydriasis or dilation of the pupil.
2. An agent that dilates the pupil.
References in periodicals archive ?
Mydriatic effect of topically applied rocuronium bromide in tawny owls (Strix aluco): comparison between two protocols.
Systematic review of evidence suggests that mydriatic photography is the most effective screening strategy, with high sensitivity (87-97%) and specifity (83-92%) for detection of sight-threatening DR, but it has several disadvantages (time taken to obtain and interpret the photographs, the need for dilating drops and its associated issues related to patient compliance) [8].
He was started on intensive ocular lubricants and topical antibiotics, together with a mydriatic agent and topical non-steroidal anti-inflammatories (NSAIDS).
Therefore digital fundus examination by non mydriatic fundus camera gives so much information about the retina and optic nerve and vessels in very high magnification.
According to a report, a case of Herpes zoster ophthalmicus complicated with complete ophthalmoplegia showed mydriatic pupil reacting to dilute pilocarpine, which is a sign of Adie's pupil and is not supposed to occur in mydriasis caused due to third nerve palsy.
It can be worthwhile starting the dispensing process ahead of the sight test as the optometrist may use a mydriatic resulting in the child becoming irritable due to the stinging sensation from the drops and subsequently blurred and photophobic shortly afterwards.
INTRODUCTION: Adie's (tonic) pupil is defined as a mydriatic pupil, which is unresponsive to light and is moderately responsive to accommodation.
(48) However, a rebound effect of accelerated eye growth after cessation reduced the final myopia control effect to only 33%, (49) and the mydriatic and cycloplegic side effects have rendered this management clinically unpalatable.
(6.) Non Mydriatic Ocular Fundus Photography among headache patients in an emergency department.