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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
Medication
combination of tropicamide and phenylephrine used to dilate the eyes (mydriasis). It contains, tropicamide, an anticholinergic, and phenylephrine, as
Tropicamide/phenylephrine
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
Psychedelic drug
Patient with mydriasis (pupil dilation) due to usage of LSD.
LSD
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
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
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
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
Antidepressant medication
although anticholinergic side effects like dry mouth, constipation, and mydriasis are still sometimes seen in clinical practice. The oral bioavailability
Mirtazapine
Species of plant
tachycardia, dry mouth, constipation, visual and auditory hallucinations, mydriasis, rapid onset cycloplegia, and death. "RHS Plantfinder - Brugmansia suavolens"
Brugmansia_suaveolens
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
Antispasmodic drug
especially in people with psychiatric conditions Eyes: trihexyphenidyl causes mydriasis with or without photophobia. It may precipitate narrow angle glaucoma
Trihexyphenidyl
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
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
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
Group of stereoisomers
Parenteral use may cause orthostatic hypotension. Eyes : Biperiden causes mydriasis with or without photophobia. It may precipitate narrow angle glaucoma
Biperiden
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
Tropane alkaloid & anticholinergic drug
breath) Rash Erythema Other hypersensitivity reactions Blurred vision Mydriasis (dilated pupils) Drowsiness Dizziness Somnolence Physostigmine, a cholinergic
Scopolamine
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
Liquid applied directly to the eye
consult a doctor.[citation needed] Artificial tears Carboxymethyl cellulose Mydriasis Refractive error Tetrahydrozoline hydrochloride Visine "Shelf-life of
Eye_drop
SNRI antidepressant
Constipation Fatigue Common adverse effects include: Tremor Blurred vision Mydriasis Decreased appetite Sexual dysfunction Insomnia Anxiety Elevated cholesterol
Desvenlafaxine
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
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
Antidepressant
dysrhythmias Eyes, ears, nose and throat: blurred vision, tinnitus, mydriasis Gastrointestinal: dry mouth, nausea, vomiting, paralytic ileus, increased
Imipramine
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
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
Chemical compound
side-effect: Stinging Discomfort Irritation Increased red eyes Blurred vision Mydriasis Punctate keratitis Lacrimation (tears) Increased intraocular pressure
Naphazoline
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
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
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
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
Emotional state experienced as the result of an unexpected event
often exposing the white sclera above and below the iris. Pupil dilation mydriasis or pupil constriction miosis Dropped jaw so that the lips and teeth are
Surprise
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
Drooping of the upper eyelid over the eye
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Ptosis_(eyelid)
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
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
Drug that binds to but does not activate muscarinic cholinergic receptors
as a result of dopamine deficiency. Cogentin Cyclopentolate NS produce mydriasis and cycloplegia in diagnostics may cause ocular hypertension Short acting
Muscarinic_antagonist
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
Chemical compound
Medicines. Tropicamide is an antimuscarinic drug that produces short acting mydriasis (dilation of the pupil) and cycloplegia when applied as eye drops. It
Tropicamide
Class of medications
agitation, confusion, lethargy, etc.), resting sinus tachycardia, dry mouth, mydriasis, blurred vision, fever Cardiac effects: hypertension (early and transient
Tricyclic_antidepressant
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
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)
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
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
Inflammation of the uvea of the eye
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Uveitis
Drug that block acetylcholine in synapses of cholinergic nervous system
could be presented: Mild symptoms include tachycardia, flushed face, mydriasis and blurred vision, fever, dry mouth and skin, and urinary retention.
Cholinergic_blocking_drug
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
Class of G protein-coupled receptors
ciliary body and (stimulation of dilator pupillae muscles of iris causes mydriasis) Actions also include glycogenolysis and gluconeogenesis from adipose
Adrenergic_receptor
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
Drug that increases alertness
reportedly associated with hyperhidrosis, panic attacks, severe anxiety, mydriasis, paranoia, aggressive behavior, psychosis, rhabdomyolysis, and punding
Stimulant
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
Synthetic decongestant
palpitations. Rarely, pseudoephedrine therapy may be associated with mydriasis (dilated pupils), hallucinations, arrhythmias, hypertension, seizures
Pseudoephedrine
Jewish religious male circumcision ceremony
June 11, 2014. Berger, Itai; Steinberg, Avraham (May 2002). "Neonatal mydriasis: intravenous lidocaine adverse reaction". J Child Neurol. 17 (5): 400–01
Brit_milah
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
Inflammatory swelling of the eyelid due to meibomian gland blockage
Anisocoria Argyll Robertson pupil Marcus Gunn pupil Adie syndrome Miosis Mydriasis Cycloplegia Parinaud's syndrome Other Nystagmus Childhood blindness Infections
Chalazion
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
French anatomist, ophthalmologist and surgeon
known as reverse Horner syndrome because of its clinical features of mydriasis, eyelid retraction and hyperhidrosis. Neuro-ophthalmic syndrome named
François_Pourfour_du_Petit
Ring of fibers suspending the eye's lens
Zonules of Zinn exposed due to exceptional mydriasis in a case of ectopia lentis associated with Marfan syndrome
Zonule_of_Zinn
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
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