scholarly journals Observation of environments with different restorative potential results in differences in eye patron movements and pupillary size

IBRO Reports ◽  
2019 ◽  
Vol 7 ◽  
pp. 52-58 ◽  
Author(s):  
Joel Martínez-Soto ◽  
Luis Alfonso de la Fuente Suárez ◽  
Leopoldo Gonzáles-Santos ◽  
Fernando A. Barrios
Keyword(s):  
Pupillary Size

scholarly journals Case Report: Frontalis sign for early bedside consideration of impending uncal herniation

F1000Research ◽  
2016 ◽  
Vol 5 ◽  
pp. 125
Author(s):  
Sunil Munakomi ◽  
Bijoy Mohan Kumar
Keyword(s):  
Case Report ◽  
Early Diagnosis ◽  
Early Recognition ◽  
Mass Effect ◽  
Tertiary Centre ◽  
Valuable Adjunct ◽  
Neurosurgical Patients ◽  
Pupillary Size ◽  
Timely Referral ◽  
Simple Bedside

It is prudent to have early diagnosis and timely management of uncal herniation for better management of neurosurgical patients. There are several clinical and radiological armamentariums that aid in early recognition of the condition. Through this case report, we try to highlight a simple bedside clinical sign that can be a valuable adjunct in early recognition of the impending uncal herniation especially in scenarios wherein it is difficult to assess the pupillary size and reactivity correctly. The improvement in the sign also confirms the resolution of the mass effect in the postoperative period. This is especially helpful for doctors working in the periphery or in resource restrained areas, for a timely referral of the patient to tertiary centre.

Sympathetic Pupillary Activity in Infants

PEDIATRICS ◽  
1977 ◽  
Vol 59 (2) ◽  
pp. 195-198
Author(s):  
Netanel Laor ◽  
Amos D. Korczyn ◽  
Pinchas Nemet
Keyword(s):  
Young Adults ◽  
Sympathetic Nerve ◽  
Sympathetic Neurons ◽  
Lower Number ◽  
Sympathetic System ◽  
Pupillary Responses ◽  
Pupillary Size

In an attempt to learn the contribution of the sympathetic system to smaller pupillary size in infants, pupillary responses were tested to agents acting on this system in 12 infants and 23 young adults. Phenylephrine dilated the pupils of both groups by the same ratio, with infants' pupils reaching a lesser diameter. The responses to cocaine and hydroxyamphetamine were lower in children. It is concluded that in the first months of life the postganglionic sympathetic nerve releases less norepinephrine. This may be due to a lower number of sympathetic neurons. The post-synaptic apparatus may not be fully developed in infants.

The Localizing Value of Asymmetry in Pupillary Size in Severe Head Injury

Neurosurgery ◽  
1994 ◽  
Vol 34 (5) ◽  
pp. 840-846 ◽  
Author(s):  
Randall M. Chesnut ◽  
Theresa Gautille ◽  
Barbara A. Blunt ◽  
Melville R. Klauber ◽  
Lawrence E. Marshall
Keyword(s):  
Head Injury ◽  
Severe Head Injury ◽  
Pupillary Size

Normal pupillary size in fluorescent and bright light

2003 ◽  
Vol 41 (2) ◽  
pp. 247-250 ◽  
Author(s):  
Michael D. Witting ◽  
Deepi Goyal
Keyword(s):  
Bright Light ◽  
Pupillary Size

scholarly journals Pupillary Size and Light Reflex in Premature Infants

2015 ◽  
Vol 39 (4) ◽  
pp. 175-178 ◽  
Author(s):  
Tetsuya Ikeda ◽  
Hitoshi Ishikawa ◽  
Kimiya Shimizu ◽  
Ken Asakawa ◽  
Toshiaki Goseki
Keyword(s):  
Premature Infants ◽  
Light Reflex ◽  
Pupillary Size

Assessing the Comatose Patient in the Intensive Care Unit

1991 ◽  
Vol 2 (4) ◽  
pp. 613-622 ◽  
Author(s):  
Christina Stewart-Amidei
Keyword(s):  
United States ◽  
Intensive Care Unit ◽  
Intensive Care ◽  
Motor Response ◽  
The United States ◽  
Complex Phenomenon ◽  
Comatose Patient ◽  
Reticular Activating System ◽  
Predicting Outcome ◽  
Pupillary Size

Consciousness is a complex phenomenon comprising arousal and awareness. These functions are mediated by the reticular activating system that begins in the brainstem and projects to higher cortical structures. Abnormalities directly or indirectly affecting this system may produce coma. Detailed neurologic assessment consists of evaluation of history, skeletal motor response, pupillary size and reactivity, eye movement, and respiratory patterns. Information obtained may be useful in localizing the contributory lesion, predicting outcome, and determining brain death. Several scales have been used to quantify coma, each with limitations. In the United States, the most widely used scale is the Glasgow Coma Scale

Pupillary escape intensified by large pupillary size

1983 ◽  
Vol 23 (6) ◽  
pp. 611-615 ◽  
Author(s):  
Fuchuan Sun ◽  
Lawrence Stark
Keyword(s):  
Pupillary Size
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