{"id":6364,"date":"2020-06-20T18:40:20","date_gmt":"2020-06-21T01:40:20","guid":{"rendered":"https:\/\/up.physicaldiagnosispdx.com\/up\/?page_id=6364"},"modified":"2021-01-16T12:44:40","modified_gmt":"2021-01-16T20:44:40","slug":"afferent-pupillary-defect","status":"publish","type":"page","link":"https:\/\/up.physicaldiagnosispdx.com\/up\/neurology-m\/afferent-pupillary-defect\/","title":{"rendered":"Afferent Pupillary Defect"},"content":{"rendered":"<div class=\"wpb-content-wrapper\">[vc_row css=&#8221;.vc_custom_1592155698727{background-color: #fff9f9 !important;}&#8221;][vc_column][vc_column_text]\n<div id=\"bp-page-1\" class=\"page\" data-page-number=\"1\" data-loaded=\"true\">\n<span style=\"font-size: 14pt;\">This is the most common pupil defect, characterized by asymmetric pupillary constriction to light, but these pupils are equal (no anisocoria).\u00a0Main etiology is optic neuritis, but other diseases of the optic nerve or retina may cause it.\u00a0The swinging flashlight test is performed by shining a light for 1-2 seconds in one eye and then moving the light to the other. Have the patient look at a distant object to not cause confounding pupil constriction due to accommodation.\u00a0Normally, the direct and consensual responses are equal but in diseases of the optic nerve or retina, the direct response is less than normal, so that when the light passes from the \u201cgood\u201d eye, rather than constriction one will see a slight, paradoxical dilation of the pupil, as the perceived light is dimmer than in the good eye, and the consensual response will also be decreased symmetrically.\u00a0The consensual response in the affected eye, however, is intact, so when light is shone in the good eye, even the bad eye constricts normally (since the consensual response is independent of the optic nerve and retina from the bad eye)<\/span>\n<\/div>\n<p>&nbsp;<br \/>\n<figure id=\"attachment_1658\" aria-describedby=\"caption-attachment-1658\" style=\"width: 150px\" class=\"wp-caption alignleft\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-1658 size-thumbnail\" src=\"https:\/\/up.physicaldiagnosispdx.com\/up\/wp-content\/uploads\/iconfinder_3_1250308-150x150.png\" alt=\"\" width=\"150\" height=\"150\" srcset=\"https:\/\/up.physicaldiagnosispdx.com\/up\/wp-content\/uploads\/iconfinder_3_1250308-150x150.png 150w, https:\/\/up.physicaldiagnosispdx.com\/up\/wp-content\/uploads\/iconfinder_3_1250308-300x300.png 300w, https:\/\/up.physicaldiagnosispdx.com\/up\/wp-content\/uploads\/iconfinder_3_1250308.png 512w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><figcaption id=\"caption-attachment-1658\" class=\"wp-caption-text\">\u00a0<\/figcaption><\/figure>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]\n<h1>Patient 1:<\/h1>\n<p><span style=\"font-size: 14pt;\">This patient is an old woman with a history of multiple strokes who was admitted with confusion.<\/span>[\/vc_column_text][\/vc_column][\/vc_row][vc_row css=&#8221;.vc_custom_1592155788700{background-color: #dcd9dd !important;}&#8221;][vc_column][vc_column_text]\n<p style=\"text-align: center;\"><iframe loading=\"lazy\" src=\"https:\/\/player.vimeo.com\/video\/472433916?loop=1\" width=\"640\" height=\"360\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n[\/vc_column_text][\/vc_column][\/vc_row]\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row css=&#8221;.vc_custom_1592155698727{background-color: #fff9f9 !important;}&#8221;][vc_column][vc_column_text] This is the most common pupil defect, characterized by asymmetric pupillary constriction to light, but these pupils are equal (no anisocoria).\u00a0Main etiology is optic neuritis, but other diseases of the optic nerve or retina may cause it.\u00a0The swinging flashlight test is performed by shining a light<\/p>\n","protected":false},"author":9,"featured_media":0,"parent":1791,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"page-templates\/page_PDXPDX-full-width.php","meta":{"nf_dc_page":"","_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"class_list":["post-6364","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/up.physicaldiagnosispdx.com\/up\/wp-json\/wp\/v2\/pages\/6364","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/up.physicaldiagnosispdx.com\/up\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/up.physicaldiagnosispdx.com\/up\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/up.physicaldiagnosispdx.com\/up\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/up.physicaldiagnosispdx.com\/up\/wp-json\/wp\/v2\/comments?post=6364"}],"version-history":[{"count":3,"href":"https:\/\/up.physicaldiagnosispdx.com\/up\/wp-json\/wp\/v2\/pages\/6364\/revisions"}],"predecessor-version":[{"id":9999,"href":"https:\/\/up.physicaldiagnosispdx.com\/up\/wp-json\/wp\/v2\/pages\/6364\/revisions\/9999"}],"up":[{"embeddable":true,"href":"https:\/\/up.physicaldiagnosispdx.com\/up\/wp-json\/wp\/v2\/pages\/1791"}],"wp:attachment":[{"href":"https:\/\/up.physicaldiagnosispdx.com\/up\/wp-json\/wp\/v2\/media?parent=6364"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}