Anisocoria: Causes & Reasons

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Possible Causes for Anisocoria

Tonic Pupil

The causes of anisocoria are diverse and varied. Traditionally, physiologic anisocoria shows equal asymmetry in light and dark conditions. [emedicine.medscape.com]

[…] may have simple anisocoria secondary to the effect of certain drugs eg. pseudo-ephedrine or serotonin reuptake inhibitors, and the anisocoria (like physiological anisocoria [lifeinthefastlane.com]

Horner syndrome Two conditions commonly produce normally reactive pupils with anisocoria equal or greater in darkness: Horner syndrome and physiologic anisocoria. [emedicine.medscape.com]

Anisocoria

The small pupil is abnormal if the anisocoria is worse in the dark and the larger pupil is abnormal if the anisocoria is worse in the light when compared to dark conditions [symptoma.com]

Anisocoria Specialty Ophthalmology Anisocoria is a condition characterized by an unequal size of the eyes' pupils. [en.wikipedia.org]

anisocoria, third nerve palsy). [ncbi.nlm.nih.gov]

Triple A Syndrome

[…] severity of neurologic and autonomic dysfunction in Triple-A syndrome is quite variable, including hyperreflexia, impaired visual evoked potentials, optic nerve atrophy, anisocoria [genedx.com]

No hypotonia optic atrophy, ataxia, microcephaly M Both Same No Dumic (1987) [11] M Glucocorticoid Sensory Hyperkeratosis of palms polyneuropathy, and soles, insufficient anisocoria [hon.ch]

People with triple A syndrome often experience abnormal sweating, difficulty regulating blood pressure, unequal pupil size (anisocoria), and other signs and symptoms of autonomic [rarediseases.info.nih.gov]

Exfoliation Syndrome

Anisocoria, Physiologic (Anisocoria) Anisometropia Anisometropic Amblyopia (Amblyopia) Anophthalmia (Anophthalmos) Anophthalmos Anterior Ischemic Optic Neuropathy (Optic [provisu.ch]

Allergic) Amaurosis Fugax Amaurosis (Blindness) Amblyopia Ametropia (Refractive Errors) Angiogenesis, Corneal (Corneal Neovascularization) Angioid Streaks Aniridia Aniseikonia Anisocoria [provisu.ch]

Intracranial Hemorrhage

Initial emergency room evaluation found the patient to have anisocoria with a fixed and dilated right pupil and demonstrated evidence of decorticate posturing. [ncbi.nlm.nih.gov]

There were 4 hours after patient back to neurosurgical intensive care unit (NICU), patient appeared anisocoria (R/L:4.0/2.5 mm), bilateral light reflexes disappeared, then [ncbi.nlm.nih.gov]

[…] may include the following: [ citation needed ] Hypertension, fever, or cardiac arrhythmias Nuchal rigidity Subhyaloid retinal hemorrhages Altered level of consciousness Anisocoria [en.wikipedia.org]

Coma

He was managed nonoperatively and discharged with a Glasgow Coma Scale score of 15, only to return 3 days later with obtundation, fixed downward gaze, anisocoria, and absent [ncbi.nlm.nih.gov]

[…] computed tomography, CTA computed tomography angiography, EEG electroencephalogram, SAH Subarachnoid hemorrhage The Coma Neuro Exam Carefully examine the eyes (Vertical Skew, Anisocoria [emcrit.org]

If one pupil is dilated, other causes of anisocoria should be considered; they include past ocular trauma, certain headaches, and use of a scopolamine patch (if the drug comes [msdmanuals.com]

Alacrima - Achalasia - Mental Retardation

People with triple A syndrome often experience abnormal sweating, difficulty regulating blood pressure, unequal pupil size (anisocoria), and other signs and symptoms of autonomic [ghr.nlm.nih.gov]

More variable features include hypotonia, gait abnormalities, anisocoria, and visual or hearing deficits. [mendelian.co]

Brain Stem Herniation

and 2.2 to 2.4 gm/kg if they had anisocoria. [neupsykey.com]

Preoperative improvement in anisocoria was also significantly better in the high-dosage group. [neupsykey.com]

Of the 7 patients with an initial SBP of less than 60 mm Hg, 2 (29%) had anisocoria, all had absent corneal reflexes, and all were flaccid. [neupsykey.com]

Subdural Hematoma

The period from losing consciousness to brain herniation presenting as anisocoria was very short-only 30 minutes in our patient. [ncbi.nlm.nih.gov]

But the CT after 48 hours showed edema around the contusion and uncal herniation with anisocoria (Figure 2(b)). [hindawi.com]

Anisocoria was present in 7.5% of patients on admission. [scielo.br]

Stroke

Decreased levels of consciousness, hypertension, bradycardia and anisocoria may indicate a pathological rise of intracranial pressure due to cerebral edema. [symptoma.com]

Paradoxical Embolism

Increased neurological distress was suggested by anisocoria with areactive left mydriasis and body‑part pyramidal syndrome. [docksci.com]

Intracranial Hypertension

At the beginning of uncal herniation, indicated by anisocoria, the mean 1-CBF of the IC abruptly decreased from 33.7 to 19.6 ml/100g/min (n=16). [ousar.lib.okayama-u.ac.jp]

Brain Concussion

A brain concussion is a still incompletely defined syndrome of traumatic brain injury (TBI) that causes a spectrum of symptoms without evident structural damage to the brain. A headache, cognitive deficits, emotional instability, sleep disturbances, and an overall change in mental state after trauma are highly[…] [symptoma.com]

Traumatic Brain Injury

Objective: To explore the relationship between three QEEG global indexes and their association with functional outcome after neurorehabilitation in non-acute acquired brain injury (ABI) patients (traumatic brain injury and stroke). Methods: Twenty-one adult ABI patients in post-acute phase were studied. Delta-alpha[…] [pubmed.ncbi.nlm.nih.gov]

Diabetic Autonomic Neuropathy

Diabetic autonomic neuropathy is one of the commonest complications of diabetes. Although it can involve the autonomic nervous system diffusely, symptoms are confined to a single organ system and are responsible for increased incidence of morbidity, reduced quality of life and mortality. Diabetic neuropathy affects[…] [symptoma.com]

Cervical Spondylosis

Cervical Spondylosis is a condition in which abnormal deterioration of the cervical cartilages and vertebrae causes chronic neck pain. It is usually the result of prior a damage to the neck, including work or life-style activities, although its occurrence is affected by genetic factors because some families show[…] [symptoma.com]

Cluster Headache

A cluster headache is one-sided head pain that may involve tearing of the eyes and a stuffy nose. Attacks occur regularly for 1 week to 1 year, separated by long pain-free periods that last at least 1 month, possibly longer. Other common types of headaches include migraine headache and tension headache. Causes[…] [web.archive.org]

Migraine without Aura

Abstract Because serotonin, released from platelets, has been suggested to initiate migraine, a decreased platelet serotonin content, attained by a reduced intake of serotonin and the serotonin precursor tryptophan, might be beneficial. In the brain, however, increased serotonin levels, achieved by a high[…] [ncbi.nlm.nih.gov]

Brain Neoplasm

Stereotactic radiosurgery (SRS) using the Gamma Knife (GK) is now being increasingly utilized for the treatment of brain metastases. However, there are a few reported cases of SRS-induced brain neoplasms. We herein report the case of a Japanese woman with metastatic non-small cell lung cancer (NSCLC) harboring[…] [ncbi.nlm.nih.gov]

Multiple Sclerosis

Multiple sclerosis (MS) is the most common chronic disabling disease of the central nervous system (CNS) in young adults. It is characterized by the presence of multiple demyelinating inflammatory lesions disseminated in the CNS. Pseudotumoral lesions (PL) are rarely observed in patients with MS. These atypical lesions[…] [ncbi.nlm.nih.gov]

Guillain-Barré Syndrome

Immunotherapy for Guillain-Barré syndrome: a systematic review, Anthony V. Swan, Jean-Claude Raphaël, Djillali Annane, Rinske van Koningsveld, Pieter A. van Doorn Summary Guillain-Barré syndrome (GBS) is an acute inflammatory disorder of the peripheral nervous system thought to be due to autoimmunity for which[…] [web.archive.org]

Postictal State

The postictal state is defined as an abnormal state at the end of an epileptic seizure and it is characterized by motor, behavioral and neuropsychological symptoms. Depending on the type of seizure and other factors, the postictal state may last from minutes to hours, which is why the diagnosis is based on[…] [symptoma.com]

Varicella

Abstract Neonatal varicella is mostly caused by maternal chickenpox acquired during the last 3 weeks of pregnancy. Transplacentally transmitted infections occur in the first 10 to 12 days of life, whereas chickenpox after that time is most likely acquired by postnatal infection. If the mother develops rash between[…] [doi.org]

Oculomotor Nerve Paralysis

Anisocoria, Physiologic (Anisocoria) Anisometropia Anisometropic Amblyopia (Amblyopia) Anophthalmia (Anophthalmos) Anophthalmos Anterior Ischemic Optic Neuropathy (Optic [provisu.ch]

Anisocoria. The Eyes Have It. University of Michigan Kellogg Eye Center http://www.kellogg.umich.edu/theeyeshaveit/symptoms/anisocoria.html 5. [neuro-ophthalmology.stanford.edu]

Malaria

Malaria is a major cause of death worldwide and is brought about by the protozoan parasite Plasmodium acquired from a bite of a female Anopheles mosquito carrier. Malaria are still endemic in warm climates and in most third world countries around the globe. It is essentially non-existent in highly developed and first[…] [symptoma.com]

Fibromuscular Dysplasia

Fibromuscular dysplasia (FMD) is a condition characterized by vascular stenosis, obstruction or aneurysm which are nonatherosclerotic and noninflammatory in origin. FMD is generally asymptomatic. Some of the nonspecific symptoms include headache, light headedness, vertigo and tinnitus. Arterial dissection may present[…] [symptoma.com]

Horner's Syndrome

Anisocoria that is NOT associated with or due to an underlying medical condition is called physiologic anisocoria. [aapos.org]

In these topics Anisocoria [msdmanuals.com]

Approximately 20% of the population has anisocoria. The amount of anisocoria can vary from day-to-day and can even switch eyes. [aapos.org]

Holmes-Adie Syndrome

Background Anisocoria, or unequal pupil sizes, is a common condition. [emedicine.medscape.com]

KEYWORDS: Accommodative impairment; Holmes Adie syndrome; Vogt Koyanagi Harada disease; anisocoria; tonic pupil [ncbi.nlm.nih.gov]

Pharmacological testing of anisocoria. [scielo.br]

Zygadenus Poisoning

U.S. Government Printing Office, 1929 0 مراجعات معاينة هذا الكتاب » ما يقوله الناس - كتابة مراجعة لم نعثر على أي مراجعات في الأماكن المعتادة. الصفحات المحددة الصفحة 7 الصفحة 4 الصفحة 6 طبعات أخرى - عرض جميع المقتطفات Farmers' Bulletin, العدد 952 عرض كامل - 1925 Farmers' Bulletin, العدد 2019 عرض كامل - 1958[…] [books.google.com]

Ophthalmic Nerve Disorder

Anisocoria, Physiologic (Anisocoria) Anisometropia Anisometropic Amblyopia (Amblyopia) Anophthalmia (Anophthalmos) Anophthalmos Anterior Ischemic Optic Neuropathy (Optic [provisu.ch]

Differential diagnosis Anisocoria: Essential anisocoria Adie pupil (long-standing) Argyll-Robertson pupil Chronic anterior uveitis Pupillary sphincter tear Unilateral use [eyewiki.org]

Physical exam revealed a non-obese woman with anisocoria with the right pupil dilated and slightly less reactive to light than the left pupil. [healio.com]