mydriasis

(redirected from Pupillary dilatation)
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my·dri·a·sis

 (mĭ-drī′ə-sĭs)
n.
Dilation of the pupil of the eye, especially when excessive or prolonged, usually as a result of trauma, a medical disorder, or a drug.

[Latin mydriāsis, from Greek mudriāsis, perhaps from mudros, red-hot mass of metal in a forge (in reference to the more brilliant appearance of the dilated pupil to ancient physicians, as a result of light reflected off the fundus of the eye ); possibly akin to mudān, to be damp, dripping ( mudros perhaps originally referring to molten iron).]

mydriasis

(mɪˈdraɪəsɪs; maɪ-)
n
(Pathology) abnormal dilation of the pupil of the eye, produced by drugs, coma, etc
[C17: via Late Latin from Greek; origin obscure]

my•dri•a•sis

(mɪˈdraɪ ə sɪs, maɪ-)

n.
excessive dilatation of the pupil of the eye, as the result of disease, drugs, or the like. Compare miosis.
[1650–60; < Latin mydriāsis < Greek mydríāsis, appar. derivative of mýdros hot mass of iron, though sense connection unclear]

mydriasis

abnormal dilatation of the pupil, the result of disease or the use of certain drugs. Cf. miosis. — mydriatic, adj.
See also: Eyes
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.mydriasis - reflex pupillary dilation as a muscle pulls the iris outward; occurs in response to a decrease in light or certain drugs
dilatation, dilation - the act of expanding an aperture; "the dilation of the pupil of the eye"
Translations

my·dri·a·sis

n. midriasis, dilatación prolongada de la pupila.
References in periodicals archive ?
Unilateral exfoliation was defined clinically as the presence of biomicroscopically detectable exfoliation material on the anterior lens capsule or at the pupillary border in one eye after pupillary dilatation with 10% phenylephrine hydrochloride.
Plus disease is dilatation of veins and tortuosity involving at least two quadrants associated with preretinal haemorrhage and vitreous haemorrhage, failure of pupillary dilatation, iris engorgement and vitreous haze.
The reliability test showed very good agreement for 13 items: blood pressure, pulse, respiratory rate, pupillary dilatation, tear production, sweat production, goose pimples, forehead wrinkles, clenched teeth, increased tonus, complain, motor restlessness, and confusion (Cohen's kappa = 0.
Sweating, pupillary dilatation, and changes in respiratory or heart rate were observed during these events.
It leads to sweating, pupillary dilatation, excitability, anxiety, panic, irritability, concentration difficulties and distractibility.