| 释义 |
mydriaticenUK
myd·ri·at·ic M0507800 (mĭd′rē-ăt′ĭk)adj. Causing dilatation of the pupils.n. A mydriatic drug.
[From mydriasis.]mydriatic (ˌmɪdrɪˈætɪk) adj (Pathology) relating to or causing mydriasisn (Pharmacology) a mydriatic drugmyd•ri•at•ic (ˌmɪd riˈæt ɪk)
adj. 1. pertaining to or producing mydriasis. n. 2. a mydriatic drug. [1850–55] Thesaurus| Noun | 1. | mydriatic - a drug that causes the pupil of the eye to dilate; used to aid eye examinationsmydriatic drugatropine - a poisonous crystalline alkaloid extracted from the nightshade family; used as an antispasmodic and to dilate the eye pupil; also administered in large amounts as an antidote for organophosphate nerve agents or organophosphate insecticidesdrug - a substance that is used as a medicine or narcotic |
TranslationsmydriaticenUK
mydriatic[¦mid·rē¦ad·ik] (pharmacology) An agent which produces dilation of the pupil, such as eucatropine hydrochloride. mydriaticenUK
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. mydriatic1. 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. mydriaticenUK
Related to mydriatic: anticholinergic, atropineSynonyms for mydriaticnoun a drug that causes the pupil of the eye to dilateSynonymsRelated Words |