Results 181 to 190 of about 5,493 (223)

Failure of Atropine to Produce Pupillary Dilatation

Science, 1953
Nash, C. B., Woodbury, R. A.
exaly   +4 more sources

Pupillary Dilation and Tropicamide

Annals of Internal Medicine, 1988
Excerpt To the editor: Steinmann and colleagues (1) have reviewed the benefits and limitations of funduscopic screening by the primary care practitioner and have shown that instilling one drop of 1...
B R, Shaw, R A, Lewis
openaire   +2 more sources

Sector Pupillary Dilatation by An Epinephrine Strip

American Journal of Ophthalmology, 1973
exaly   +3 more sources

Sector Pupillary Dilation

Optometry and vision Science, 1990
Sector pupillary dilation is a method for controlled delivery of topical ophthalmic adrenergic agonists to stimulate the dilator muscle focally in patients predisposed to pharmacologically induced acute angle‐closure glaucoma. Sector pupillary dilation can be achieved by applying a sterile cotton‐tipped applicator moistened with 2.5% phenylephrine ...
L C, Locke, R, Meetz
openaire   +2 more sources

Pupillary Dilation as an Index of the Orienting Reflex

Psychophysiology, 1982
ABSTRACTThe effects of tone intensity (60, 75, or 90 dB) on the amplitude and habituation of the pupillary dilation response were investigated using a between‐groups design (N = 72). Although pupillary dilation responses were elicited in all intensity conditions, neither response amplitude nor habituation was influenced by differences in stimulus ...
R M, Stelmack, D A, Siddle
openaire   +2 more sources

Pupillary Dilation as an Index of Task Demands

Perceptual and Motor Skills, 2009
To analyze how pupillary responses reflect mental effort and allocation of processing resources under several load conditions, the pupil diameter of 18 participants was recorded during an auditory digit-span recall task under three load conditions: Low (5 digits), Moderate (8 digits), and Overload (11 digits).
Raúl, Cabestrero, Antonio, Crespo, Pilar, Quirós   +2 more
openaire   +2 more sources

Pupillary Dilations in Movement Preparation and Execution

Psychophysiology, 1985
ABSTRACTMovement‐related pupillary responses (MRPRs) were examined during self‐triggered finger flexions to determine the time course and extent of response‐related effects on this measure of general processing demands. MRPRs to self‐triggered finger movements began about 1.5 s before the response and peaked 0.5 s post‐response for simple movements ...
F, Richer, J, Beatty
openaire   +2 more sources

A combination solution for routine pupillary dilation

Optometry - Journal of the American Optometric Association, 2006
This study investigated the ability of a combination drop containing reduced concentrations of tropicamide and phenylephrine to produce pupillary dilation adequate for routine fundoscopy.One eye of each subject (N = 28; age range, 21 to 40 years; median, 23 years) was dilated with 1 drop of a solution containing 0.5% tropicamide and 2.5% phenylephrine (
David M, Krumholz, Joan K, Portello, Mark, Rosenfield, Jacob D, Rosenbaum   +3 more
openaire   +2 more sources

Pupillary dilation: the patient's perspective

Clinical and Experimental Optometry, 1996
Background: Mydriatic agents are used in optometric practice to dilate the pupil and facilitate the use of techniques, such as binocular indirect ophthalmoscopy to visualise the fundus. While the effects such pharmacological agents have on the size of the pupil are obvious, information regarding the patient's perception of the effects of mydriasis is ...
John Siderov, John R Bartlett, Colin J Madigan   +2 more
openaire   +1 more source

PUPILLARY DILATATION INDUCED BY STIMULATION OF AMYGDALOID NUCLEI

Psychiatry and Clinical Neurosciences, 1953
Summary 1) Through stimulation of the medial principal nucleus of amygdala proper (T of Volsch), most remarkable pupillary dilatation was called forth generally in both sides and in response to unilateral stimulation. Exophthalmus, abduction of eyeballs, retraction of the nictitating membranes, and nystagmus of small amplitude were also manifested.
H, KOIGEGAMI, K, YOSHIDA
openaire   +2 more sources