mydriasis

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mydriasis

 [mĭ-dri´ah-sis]
great dilatation of the pupil.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

my·dri·a·sis

(mi-drī'ă-sis),
Dilation of the pupil.
[G.]
Farlex Partner Medical Dictionary © Farlex 2012

mydriasis

(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.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

my·dri·a·sis

(mi-drī'ă-sis)
Dilation of the pupil.
[G.]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

mydriasis

Widening (dilatation) of the pupil of the eye, usually as a result of instillation of a mydriatic drug, such as ATROPINE or CYCLOPENTOLATE.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

mydriasis

1. Dilatation of the pupil. 2. The condition of an eye having an abnormally large pupil diameter (5 mm in daylight). The condition may be due to a paralysis of the sphincter pupillae muscle, to an irritation of the sympathetic pathway, to a drug (e.g. atropine, homatropine), or to adaptation to darkness. See miosis; dilator pupillae muscle; mydriatic; pupil.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann

my·dri·a·sis

(mi-drī'ă-sis)
Dilation of the pupil.
[G.]
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Comparisons between the [alpha]1-ARA and control groups regarding dilated pupil diameters and PL ratios were performed by the Wilcoxon rank sum test.
In Renaissance Italy, Italian ladies used to apply a purified extract from the berries of Atropa belladonna as eye drops to both eyes; the purpose was to create artificially dilated pupils; it was considered a sign of beauty; belladonna is Italian for a beautiful lady [16, 17].
The new analysis included a total of 53,472 members of Kaiser Permanente Northern California's diabetes registry who had an initial dilated pupil retinal examination during 1996-1998 that was coded as "no retinopathy."
Only by regular eye examinations through dilated pupils can glaucoma be detected and treated before loss of vision occurs.
Normally, an ipsilateral fixed and dilated pupil suggests lateral transtentorial herniation, while bilaterally fixed and dilated pupils are consistent with central transtentorial herniation in a fully resuscitated patient.
You can calculate the longest-focal-length eyepiece useful for a given scope by multiplying the instrument's f/ratio by the size of your fully dilated pupil. For the example above of a 6-inch f/4 scope, if you want a 7-mm exit pupil and the maximum true field, you need an eyepiece with a 46-mm field stop and a focal length of 28 mm (4 x 7 mm).
Among the 8,107 respondents, 78% reported having at least one primary care visit in the past year, 77% had dilated pupil exams, and 30% received health education.
EYE-CON Bowie's dilated pupil made his left eye seem brown
In his teens, a friend punched him, resulting in one permanently dilated pupil. He formed his first band at 15 and later studied with mime artist Lindsay Kemp.
Other signs to look for are external ophthalmoplegia (vertical deviation and exotropia in the side of the dilated pupil) inducing diplopia and upper lid ptosis.
Operating on one eye at a time, the surgeon cuts into the cornea and works through the dilated pupil to open the capsule containing the opaque lens.