mydriasis

(redirected from Dilated pupil)
Also found in: Thesaurus, Medical, Encyclopedia.

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 classic literature ?
Although the young man was brave, as we know, he was terrified at that wild countenance, those terribly dilated pupils, those pale cheeks, and those bleeding lips.
His dilated pupils swerved from my face, glan cing at the window with a sort of scared fury.
On each of these occasions Mrs Verloc's dilated pupils, losing their far-off fixity, followed her husband's movements with the effect of black care and, impenetrable attention.
Her eyes raised for a moment seemed full of innocent suffering and unexpressed menace in the depths of the dilated pupils within the rings of sombre blue.
This is serious,' the young doctor exclaimed as he looked at her painful red eye, cloudy cornea and dilated pupil.
Their clinical measurements of pharmacologically dilated pupil size before surgery found significantly smaller pupils in patients who had used tamsulosin than in control patients, in contrast to the findings in a study by Cooney et al.
Fixed and dilated pupil is present from the time of birth, observed more frequently in girls and typically bilateral (1-4).
EYE-CON Bowie's dilated pupil made his left eye seem brown
Unilateral dilated pupil was helpful in diagnosis of intracranial compressing hematoma.
It involves assessment of visual acuity (including the use of a pinhole to overcome refractive error) and a retinal examination (fundoscopy) through a dilated pupil.
The man showed all signs of death, including dilated pupil, no heartbeat and no breathing," a doctor at Saqr Hospital told 7DAYS yesterday adding that the Pakistani man had not responded to any of their initial treatments.