Ophthalmology Book

http://www.fpnotebook.com/

Mydriasis

Aka: Mydriasis, Pupil Dilation, Pupil Dilitation
Advertisement
  1. Physiology: Normal Response
    1. Sympathetic stimulation
    2. Dark lighting conditions
  2. Causes: Bilateral Dilated Pupil
    1. Mnemonic: AAAS
      1. Anticholinergic Toxicity or Atropine
      2. Antihistamines
      3. Antidepressants (Tricyclic Antidepressants)
      4. Sympathomimetics (Cocaine, Amphetamines)
    2. Carbon Monoxide Poisoning
  3. Causes: Unilateral Dilated pupil
    1. See Also Anisocoria
    2. Comatose patient
      1. Indicative of Brain Stem herniation
    3. Alert patient
      1. Not due to Increased Intracranial Pressure
      2. Acute Glaucoma
      3. Mydriatic drug (e.g. Atropine)
      4. Cranial Nerve III paralysis
        1. Posterior Communicating Artery aneurysm
  4. Causes: Dilated pupil does not constrict with Pilocarpine
    1. Local Eye Trauma
    2. Topical Anticholinergic agent present in eye

Mydriasis (C0026961)

Definition (MSH) Dilation of pupils to greater than 6 mm combined with failure of the pupils to constrict when stimulated with light. This condition may occur due to injury of the pupillary fibers in the oculomotor nerve, in acute angle-closure glaucoma, and in ADIE SYNDROME.
Concepts Sign or Symptom (T184)
MSH D015878
ICD10 H57.04
SnomedCT 37125009, 301940002, 123101006
French MYDRIASE, Pupilles dilatées, Dilatation des pupilles, DILATATION DE LA PUPILLE, Mydriase
English MYDRIASIS, Mydriasis, NOS, PUPILLARY DILATION, PUPILS DILATED, Pupil Dilation, DILATATION PUPILLARY, Large pupil, Mydriatic pupil, mydriasis (physical finding), mydriasis, Pupil dilation (finding), mydriasis was noted, Dilatation pupillary, Dilated pupils, Pupils dilated, PUPIL DILATED, Mydriasis [Disease/Finding], pupil dilation, dilated pupil, large pupil, pupillary dilation, dilated pupils, pupillary dilatation, large pupils, pupil dilated, pupils dilated, Pupil dilation, Pupil dilated, Wide pupil, Dilated pupil, dilatation; pupil, pupil; dilatation, Dilated pupil (qualifier value), Dilated pupil [Ambiguous], Pupil dilation -RETIRED-, Mydriasis, Dilation (Pupil), Dilated pupil (finding), Dilated pupil, function (observable entity)
Portuguese MIDRIASE, Pupilas dilatadas, Dilatação da pupila, DILATACAO DAS PUPILAS, Midríase
Spanish MIDRIASIS, pupila midriática, Dilatación pupilar, Pupilas dilatadas, midriasis, función (entidad observable), Dilated pupil, Dilated pupil [Ambiguous], PUPILAS DILATADAS, midriasis, dilatación de la pupila - RETIRADO - (concepto no activo), dilatación de la pupila - RETIRADO -, dilatación de la pupila, midriasis (calificador), midriasis (entidad observable), pupila dilatada (hallazgo), pupila dilatada, Midriasis
Dutch verwijding pupillen, pupillen verwijd, verwijde pupillen, dilatatie; pupil, pupil; dilatatie, mydriasis, Mydriase
German Erweiterung der Pupillen, Pupillen erweitert, erweiterte Pupillen, MYDRIASIS, PUPILLENERWEITERUNG, Mydriase, Pupillenerweiterung, Mydriasis, Pupillendilatation
Italian Dilatazione delle pupille, Pupille dilatate, Midriasi
Japanese 瞳孔散大, 散大瞳孔, 散瞳, ｻﾝﾄﾞｳ, ｻﾝﾀﾞｲﾄﾞｳｺｳ, ﾄﾞｳｺｳｻﾝﾀﾞｲ
Swedish Pupillutvidgning
Czech mydriáza, Rozšířené zornice, Pupilární dilatace, Mydriáza
Finnish Mydriaasi
Russian MIDRIAZ, МИДРИАЗ
Croatian MIDRIJAZA
Polish Rozszerzenie źrenicy
Hungarian Tág pupillák, Pupilla tágulat, Pupillatágulat, Dilatált pupillák
Sources
Derived from the NIH UMLS (Unified Medical Language System)


Navigation Tree