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Excessive dilation of the pupil
which increases the pupillary aperture is referred to as a mydriasis. More generally, mydriasis also refers to the natural dilation of pupils, for instance
Mydriasis
Excessive constriction of the pupil
eyes'), is excessive constriction of the pupil. The opposite condition, mydriasis, is the dilation of the pupil. Anisocoria is the condition of one pupil
Miosis
Physiological response that varies the size of the pupil
also to an extent when the radial muscle relaxes. A dilation response (mydriasis), is the widening of the pupil and may be caused by adrenaline; anticholinergic
Pupillary_response
Part of an eye examination
be viewed. For better viewing, the pupil can be opened wider (dilated; mydriasis) before ophthalmoscopy using medicated eye drops (dilated fundus examination)
Ophthalmoscopy
Psychoactive species of plant
amphetamine. The use of khat results in constipation. Dilated pupils (mydriasis) are prominent during khat consumption, reflecting the sympathomimetic
Khat
Unequal size of the eyes' pupils
condition of unequal pupils.[citation needed] Cycloplegia Hippus Miosis Mydriasis Parinaud's syndrome "anisocoria". Dictionary.com Unabridged (Online).
Anisocoria
Medication
combination of tropicamide and phenylephrine used to dilate the eyes (mydriasis). It contains, tropicamide, an anticholinergic, and phenylephrine, as
Tropicamide/phenylephrine
Chemical compound
Dapiprazole (brand name Rev-Eyes) is an alpha-1 blocker. It is used to reverse mydriasis after eye examination. Doughty MJ, Lyle WM (May 1992). "A review of the
Dapiprazole
Rare disorder affecting the eye
Pourfour du Petit syndrome (PdPs) is a rare cause of unilateral mydriasis, lid retraction, exophthalmos, and hyperhidrosis. PdPs is typically caused by
Pourfour_du_Petit_syndrome
Inability to focus the eye due to ciliary muscle paralysis
also no longer focus on close-by objects. Cycloplegia with accompanying mydriasis (dilation of pupil) is usually due to topical application of muscarinic
Cycloplegia
Syndrome caused by a dangerous level of a toxin
delirium, dry skin, fever, flushing, hallucinations, ileus, memory loss, mydriasis (dilated pupils), myoclonus, psychosis, seizures and urinary retention
Toxidrome
Substance that mimics effects of catecholamines
effects, but through completely different pathways. For example, both cause mydriasis, but parasympatholytics reduce accommodation (cycloplegia) while sympathomimetics
Sympathomimetic_drug
French writer and professor (born 1940)
Clézio (1971) Haï (1971) Mydriase (1973). Mydriasis, trans. Teresa Lavender Fagan, published in Mydriasis: Followed by “To the Icebergs” (2019). Vers
J._M._G._Le_Clézio
Genus of flowering plants in the nightshade family
headaches, poor coordination, delusions, visual and auditory hallucinations, mydriasis, rapid onset cycloplegia, and death. The hallucinogenic effects of Brugmansia
Brugmansia
Condition affecting the shape of the pupil
called tadpole pupil. Tadpole pupil, also known as episodic segmental iris mydriasis, is an ocular condition where the muscles of the iris begin to spasm,
Tadpole_pupil
Medical condition
report in 1999, it was characterized in 2010 as a syndrome of congenital mydriasis, patent ductus arteriosus, and aneurysmal arterial disease—in particular
Multisystemic smooth muscle dysfunction syndrome
Multisystemic_smooth_muscle_dysfunction_syndrome
Psychophysiological response to rewarding auditory or visual stimuli
tingling or chills), sometimes along with piloerection (goose bumps) and mydriasis (pupil dilation). The sensation can occur as a mildly to moderately pleasurable
Frisson
Antidepressant medication
although anticholinergic side effects like dry mouth, constipation, and mydriasis are still sometimes seen in clinical practice. The oral bioavailability
Mirtazapine
Never marketed appetite suppressant
slightly more sleep disturbances and headaches than placebo, as well as mydriasis and a self-reported decrease in arousal. It had little effect on heart
Tiflorex
Part of an eye
Substances that cause miosis are described as miotic. Dilation of the pupil is mydriasis. Dilation can be caused by mydriatic substances such as an eye drop solution
Pupil
Group of stereoisomers
Parenteral use may cause orthostatic hypotension. Eyes : Biperiden causes mydriasis with or without photophobia. It may precipitate narrow angle glaucoma
Biperiden
Difference in coloration, usually of the iris but also of hair or skin
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Heterochromia
Medication; α-adrenergic antagonist
brand name Ryzumvi to reverse the effects of pharmacologically-induced mydriasis. A possible adverse effect of phentolamine is orthostatic hypotension
Phentolamine
Eye reflex which alters the pupil's size in response to light intensity
light in), whereas a lower intensity of light causes the pupil to dilate (mydriasis, expansion; thereby allowing more light in). Thus, the pupillary light
Pupillary_light_reflex
Inability to focus on distant objects
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Myopia
Species of plant
tachycardia, dry mouth, constipation, visual and auditory hallucinations, mydriasis, rapid onset cycloplegia, and death. "RHS Plantfinder - Brugmansia suavolens"
Brugmansia_suaveolens
Neurological disorder
three hallmark symptoms, namely at least one abnormally dilated pupil (mydriasis) which does not constrict in response to light, loss of deep tendon reflexes
Adie_syndrome
Species of plant
hyperthermia; tachycardia; bizarre, and possibly violent behavior; and severe mydriasis with resultant painful photophobia that can last several days. Pronounced
Datura_innoxia
Intrinsic muscles of the eye
diameter and it encircles the pupil. The pupillary dilation is also called mydriasis, and the constriction of the pupil is also called miosis. Extraocular
Intraocular_muscles
Nerves of the orbit around the eye
short ciliary nerve may result in loss of the pupillary light reflex, or mydriasis. The short ciliary nerves are branches of the ciliary ganglion. They arise
Short_ciliary_nerves
Psychedelic drug
Patient with mydriasis (pupil dilation) due to usage of LSD.
LSD
American pharmaceutical and healthcare corporation
0.75%): In September 2023, received FDA approval for the treatment of mydriasis caused by adrenergic agonist or parasympatholytic agents or a combination
Viatris
Antispasmodic drug
especially in people with psychiatric conditions Eyes: trihexyphenidyl causes mydriasis with or without photophobia. It may precipitate narrow angle glaucoma
Trihexyphenidyl
Inflammation of the eyelid
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Blepharitis
Group of eye diseases related to poor retinal and nerve perfusion
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Glaucoma
Central nervous system stimulant
blurred vision and dry eyes, with less frequent reports of diplopia and mydriasis. In some cases, tolerance might be an issue with stimulants like methylphenidate
Dexmethylphenidate
Decreased ability to see color or color differences
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Color_blindness
Chemical compound
(deoxyepinephrine or N-methyldopamine), used in ophthalmology. It induces mydriasis. It also has been investigated for use in the treatment of congestive
Ibopamine
Medical condition
affected individual will also have a ptosis, or drooping of the eyelid, and mydriasis (pupil dilation).[citation needed] Oculomotor palsy can arise as a result
Oculomotor_nerve_palsy
Central nervous system stimulant
blurred vision and dry eyes, with less frequent reports of diplopia and mydriasis. In some cases, tolerance might be an issue with stimulants like methylphenidate
Methylphenidate
SNRI medication
of mydriasis (dilation of the pupil); therefore, its use should be avoided in patients with uncontrolled narrow-angle glaucoma, in which mydriasis can
Duloxetine
Eyes not aligning when looking at something
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Strabismus
Tropane alkaloid & anticholinergic drug
breath) Rash Erythema Other hypersensitivity reactions Blurred vision Mydriasis (dilated pupils) Drowsiness Dizziness Somnolence Physostigmine, a cholinergic
Scopolamine
Visual aura associated with migraine
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Scintillating_scotoma
Absence of pupil
is not visible at rest and only becomes evident after pharmacological mydriasis. This distinguishes it from true acorea, in which the pupil is completely
Acorea
Hallucinogenic class of psychoactive drug
potentiated the peripheral effects of psilocybin, including pressor effects and mydriasis, but overall did not significantly modify the psychoactive and hallucinogenic
Psychedelic_drug
Group of stereoisomers
Hydroxyamphetamine is used in eye drops to dilate the pupil (a process called mydriasis) so that the back of the eye can be examined. This is a diagnostic test
4-Hydroxyamphetamine
Typical antipsychotic medication
action of trifluoperazine can cause excessive dilation of the pupils (mydriasis), which increases the chances of patients with hyperopia developing glaucoma
Trifluoperazine
Chemical compound
Reported adverse effects from MDEA include the following: Hyperthermia Mydriasis Loss of appetite Reported overdose symptoms of MDEA include the following:
3,4-Methylenedioxy-N-ethylamphetamine
3,4-Methylenedioxy-N-ethylamphetamine
Chemical compound
side-effect: Stinging Discomfort Irritation Increased red eyes Blurred vision Mydriasis Punctate keratitis Lacrimation (tears) Increased intraocular pressure
Naphazoline
Parasympathetic nervous system inhibitors
delusions indistinguishable from reality) Ocular symptoms (from eye drops): mydriasis, pupil dilation, and acute angle-closure glaucoma in those with shallow
Anticholinergic
Decreased ability to see
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Visual_impairment
Chemical compound used as antidote for nerve agent poisoning
pralidoxime are used together, the signs of atropinization (flushing, mydriasis, tachycardia, dryness of the mouth and nose) may occur earlier than might
Pralidoxime
Synthetic decongestant
palpitations. Rarely, pseudoephedrine therapy may be associated with mydriasis (dilated pupils), hallucinations, arrhythmias, hypertension, seizures
Pseudoephedrine
Pharmaceutical compound
N-DEAOP-NET were qualitatively similar to those of LSD, and included strong mydriasis, hyperreflexia, tremors, hypothermia, hyperactivity, skin hyperemia, stereotypy
N-DEAOP-NMT
Clouding of the lens inside the eye, causing poor vision
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Cataract
1990 toxic gas poisoning incident
Sensitivity to light 39% High blood pressure 31% Increasing the pupil (mydriasis) 29% Dry lips 29% Accelerated breathing 17% Suffering from heart tract
Kosovo_student_poisoning
Antidepressant
dysrhythmias Eyes, ears, nose and throat: blurred vision, tinnitus, mydriasis Gastrointestinal: dry mouth, nausea, vomiting, paralytic ileus, increased
Imipramine
SNRI antidepressant
Constipation Fatigue Common adverse effects include: Tremor Blurred vision Mydriasis Decreased appetite Sexual dysfunction Insomnia Anxiety Elevated cholesterol
Desvenlafaxine
Aberration of vision due to asymmetry in the eye's lens or cornea
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Astigmatism
Swelling of the eyelid due to infection of an oil gland
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Stye
Failure of the brain to process input from one eye
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Amblyopia
Abnormal intolerance to visual perception of light
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Photophobia
Spinal trigeminal nucleus
[citation needed] Ascending reticular activation in cats can produce mydriasis, which can result from prolonged pain. These results suggest some relationship
Reticular_formation
American ophthalmologist
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
James_C._Tsai
Medication for overactive bladder
muscarinic receptors and in vivo effects on urinary bladder contraction, mydriasis and salivary secretion in guinea pigs". The Journal of Pharmacology and
Oxybutynin
Medical condition
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Primary_congenital_glaucoma
Lens implanted in eye in addition to the natural lens
ICL (STAAR® Surgical's phakic IOL) is implanted under pharmacological mydriasis and implanted in the retropupillary position, between the eye's iris and
Phakic_intraocular_lens
Parasympathetic (muscarinic) Pupil dilator muscle α1: Dilates (causes mydriasis) Iris sphincter muscle - M3: contracts (causes miosis) Ciliary muscle
Table of neurotransmitter actions in the ANS
Table_of_neurotransmitter_actions_in_the_ANS
Class of drugs
α1 agonist: stimulates phospholipase C activity. (vasoconstriction and mydriasis; used as vasopressors, nasal decongestants and during eye exams). Selected
Alpha-adrenergic_agonist
Anticholinergic medication used as antidote for nerve agent poisoning
sites, and decreases bronchial secretions. In the eye, atropine induces mydriasis by blocking the contraction of the circular pupillary sphincter muscle
Atropine
Eye that appears red due to illness or injury
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Red_eye_(medicine)
Eye disease characterized by leakage of fluid under the retina
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Central serous chorioretinopathy
Central_serous_chorioretinopathy
Clouding of the eye's lens due to excess galactose in the blood
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Galactosemic_cataract
Inflammation of the conjunctiva by ultraviolet damage
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Actinic_conjunctivitis
Symptoms caused by an excess of serotonin in the central nervous system
Mental status Other symptoms mild absent or low-grade fever tachycardia mydriasis excessive sweating shivering intermittent tremor akathisia myoclonus (muscle
Serotonin_syndrome
Deposits within the eye's vitreous humour
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Floater
Inhibits actions of parasympathetic nervous system
differences between the two groups can be observed. For example, both cause mydriasis, but parasympatholytics reduce accommodation (cycloplegia), whereas sympathomimetics
Parasympatholytic
Class of medications
agitation, confusion, lethargy, etc.), resting sinus tachycardia, dry mouth, mydriasis, blurred vision, fever Cardiac effects: hypertension (early and transient
Tricyclic_antidepressant
Retinal disease caused by high amounts of triglycerides in the blood
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Lipaemia_retinalis
Colored part of an eye
Anisocoria Horner's syndrome Iridocyclitis Iridoplegia Iritis Miosis/Mydriasis Synechia Third nerve palsy Iridology (also known as iridodiagnosis) is
Iris_(anatomy)
Medication used for epilepsy, bipolar disorder and migraine
adolescents, resulting in decreased height. Valproic acid can also cause mydriasis, a dilation of the pupils. There is evidence that shows valproic acid
Valproate
Bleeding within the whites of the eye
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Subconjunctival_bleeding
Blood vessels
oculomotor nerve (CN III) (resulting in divergence of both eyes, and fixed mydriasis). An embolism of a single PMCA at mesencephalic levels may result in a
Central_arteries
Vision loss due to damage to the macula of the eye
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Macular_degeneration
Form of strabismus in which the eyes turn inward
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Esotropia
blurred vision Dalrymple's sign double vision (H53.2) exophthalmos (H05.2) mydriasis/miosis (H570) nystagmus Psychiatric amusia anhedonia anxiety apathy confabulation
List_of_medical_symptoms
Drug that increases alertness
reportedly associated with hyperhidrosis, panic attacks, severe anxiety, mydriasis, paranoia, aggressive behavior, psychosis, rhabdomyolysis, and punding
Stimulant
Species of flowering plant in the nightshade family
hyperthermia, tachycardia, bizarre behavior, urinary retention, and severe mydriasis, with resultant painful photophobia that can last several days. Pronounced
Datura_stramonium
Medical condition
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Oculogyric_crisis
Medical condition
nerve palsy: eyeball gazing downward and outward position, diplopia, mydriasis, ptosis and loss of accommodation reflex. Contralateral loss of proprioception
Benedikt_syndrome
Medical condition with inflammatory cells inside the front of the eye
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Hypopyon
Medical condition
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Kayser–Fleischer_ring
Loss of vision in a quarter of the visual field
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Quadrantanopia
German pharmacologist (1873–1961)
and Sons, Ltd. p. 143. Cockcroft, WL (15 May 1920). "Loewi's Adrenalin Mydriasis as a Sign of Pancreatic Insufficiency". British Medical Journal. 1 (3098):
Otto_Loewi
Psychedelic drug
Peripherally, there have been occasional tremors noted, and occasional mydriasis. These effects are from 6 to 10 mg of the free base. I have personally
5-MeO-DMT
Opioid analgesic
opioids with shorter half-lives. Lightheadedness Tearing of the eyes Mydriasis (dilated pupils) Photophobia (sensitivity to light) Hyperventilation (breathing
Methadone
Hormonal disorder in cats
recumbency, or collapse. Ocular signs of arterial hypertension include mydriasis, hyphema, or blindness due to retinal detachment and/or intraocular hemorrhages
Feline_hyperaldosteronism
Genus of poisonous, potentially psychoactive plants
possibly violent behavior; dry skin; dry mouth; illusions; and severe mydriasis (dilated pupils) with resultant painful photophobia that can last several
Datura
Species of plant in southwestern North America
hallucinations and sensory distortions. These compounds also induce a profound mydriasis and suppress eye saccades, resulting in considerable degradation of visual
Datura_wrightii
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