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Mydriasis is the dilation of the pupil, usually having a non-physiological cause, [3] or sometimes a physiological pupillary response. [4] Non-physiological causes of mydriasis include disease , trauma , or the use of certain types of drug .
Tropicamide, sold under the brand name Mydriacyl among others, is a medication used to dilate the pupil and help with examination of the eye. [3] Specifically it is used to help examine the back of the eye. [4] It is applied as eye drops. [3] Effects occur within 40 minutes and last for up to a day. [3]
A human adult exhibiting voluntary control over his iris muscles, where he can cause his pupil to dilate and constrict on command A dilation response ( mydriasis ), is the widening of the pupil and may be caused by adrenaline ; anticholinergic agents; stimulant drugs such as MDMA , cocaine , and amphetamines ; and some hallucinogenics (e.g. LSD ...
Toggle Causes subsection. 1.1 Age. 1.2 Diseases. ... mydriasis, is the dilation of ... a sign of altered level of consciousness caused by the sedative effect of the drug.
Anticholinergic drugs are used to treat a variety of conditions: Dizziness (including vertigo and motion sickness-related symptoms) Extrapyramidal symptoms, a potential side-effect of antipsychotic medications; Gastrointestinal disorders (e.g., peptic ulcers, diarrhea, pyloro spasm, diverticulitis, ulcerative colitis, nausea, and vomiting)
Topical atropine is used as a cycloplegic, to temporarily paralyze the accommodation reflex, and as a mydriatic, to dilate the pupils. [15] Atropine degrades slowly, typically wearing off in 7 to 14 days, so it is generally used as a therapeutic mydriatic, whereas tropicamide (a shorter-acting cholinergic antagonist) or phenylephrine (an α-adrenergic agonist) is preferred as an aid to ...
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Cycloplegia with accompanying mydriasis (dilation of pupil) ... Some cycloplegic drugs can cause dilation of the pupil for several days. The ones specifically used by ...