Question 905
{"accessible":false,"alternatives":[{"id":4551,"text":"Adie pupil: a dilated unilateral pupil that has slugglish segmental pupillary responses to light but a better, but still slower, response to accommodation"},{"id":4552,"text":"Argyll Robertson pupil: bilateral small irregular pupils that react briskly to light but do not accommodate."},{"id":4553,"text":"Hutchinson pupil: a fixed dilated pupil, that may be unilateral or bilateral, that does not constrict to light or accommodation"},{"id":4554,"text":"Marcus Gunn pupil: light shone on an affected pupil will cause less constriction of both pupils than when the light is shone on the normal pupil"}],"archived":false,"correctAlternativeId":4552,"explanation":"\u003cp\u003eThe \u003ca href=\"/articles/argyll-robertson-pupil\"\u003eArgyll Robertson pupil\u003c/a\u003e actually describes\u0026nbsp;bilateral small irregular pupils that do not react\u0026nbsp;to light but constrict briskly to accommodation. It is classically seen in \u003ca href=\"/articles/tabes-dorsalis\"\u003etabes dorsalis\u003c/a\u003e of late\u0026nbsp;\u003ca href=\"/articles/neurosyphilis\"\u003eneurosyphilis\u003c/a\u003e, however nowadays the phenomenon is most commonly seen as a manifestation of\u0026nbsp;\u003ca href=\"/articles/diabetes-mellitus\"\u003ediabetes mellitus\u003c/a\u003e, \u003ca href=\"/articles/multiple-sclerosis\"\u003emultiple sclerosis\u003c/a\u003e, alcoholic midbrain degeneration, or\u0026nbsp;stroke. It is\u0026nbsp;known as the 'pseudo-Argyll Robertson pupil' when seen in those non-syphilitic conditions.\u003c/p\u003e\u003cp\u003eThe other eponymously named pupils are correctly described in the question options.\u003c/p\u003e","id":905,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/905","nextQuestionPath":null,"relatedArticles":[{"id":5629,"title":"Hutchinson pupil","link":"/articles/hutchinson-pupil?lang=us"},{"id":42406,"title":"Marcus Gunn pupil","link":"/articles/marcus-gunn-pupil?lang=us"},{"id":55553,"title":"Adie pupil","link":"/articles/adie-pupil?lang=us"}],"alsoUsedIn":[],"stem":"\u003cp\u003eWhich of the following\u0026nbsp;\u003cstrong\u003eINCORRECTLY\u003c/strong\u003e\u0026nbsp;describes the clinical features of these eponymously named pupils?\u003c/p\u003e","menuLinks":[{"text":"Report problem with question","url":"https://docs.google.com/forms/d/e/1FAIpQLSfO3soWYhOjJ7yErSysyCe5V4A1CqW7WK3rDA7MtAkecMGqNw/viewform?entry.1624461248\u0026entry.553583435=https://radiopaedia.org/questions/905"}],"attemptsPercentages":[{"alternativeId":"4554","percentage":21},{"alternativeId":"4551","percentage":12},{"alternativeId":"4552","percentage":54},{"alternativeId":"4553","percentage":13}],"promptToLogin":false,"questionManager":false,"articleId":"argyll-robertson-pupil"}