13 results
Anisocoria Evaluation Flow Chart - Differential Diagnosis
1. Check pupillary reaction to light 
2. Measure pupil size.
Measure pupil size ... noted, re-measure pupil ... - Adie's Tonic Pupil ... #Ophthalmology ... #Pupillary #Pupils
Anisocoria - Pupillary Defects - Differential Diagnosis Algorithm

Physiological - Simple Anisocoria ( <O.5mm)
 - Anisocoria equal
- 10% cocaine: pupils ... Tonic (Adie's) Pupil ... #Pupils #Defects ... #Algorithm #Causes ... #Ophthalmology
Isocoria - Pupillary Defects - Differential Diagnosis Algorithm
Relative Afferent Pupil Defect
 • Optic Neuritis
 • Ischemic
Relative Afferent Pupil ... Neuropathy Constricted Pupils ... #Pupils #Defects ... #Algorithm #Causes ... #Ophthalmology
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
Adie's Pupil What ... mildly dilated pupil ... Syndrome: • Adie's Pupil ... : • CN Ill Palsy ... of tonic pupil
Unilateral Fixed Dilated Pupil - Differential Diagnosis Framework
If Altered Mental Status - Consider Oculomotor (3rd cranial
Dilated Pupil - ... Status - Consider Oculomotor ... cranial nerve) Palsy ... no neurological cause ... Fixed #Dilated #Pupil
Mydriasis and Miosis - Differential Diagnosis Framework

Causes of Mydriasis:
Dilated pupils (mydriasis) more than 7mm
 • Unilateral
Mydriasis: Dilated pupils ... , Adie's tonic pupil ... : Constricted pupils ... Argyll Robertson pupils ... #ophthalmology
CN III Palsy - Oculomotor Nerve
 • Ptosis: Loss of innervation of the levator palpebrae superior.
CN III Palsy - Oculomotor ... Ptosis is severe in comparison ... oblique • Dilated Pupil ... innervation to pupil ... Cranial #neurology #diagnosis
Argyll Robertson Pupil
Definition:
 - Irregular and small (1-2mm) pupil
 - Light-near dissociation (accommodation remains intact)
 -
Argyll Robertson Pupil ... small (1-2mm) pupil ... - Abscent pupillary ... Argyll #Robertson #Pupil ... #ophthalmology
Relative Afferent Pupillary Defect

This maneuver of intermittent light stimulus is called the alternating light test or
Marcus Gunn's pupils ... clear sign of unilateral ... very sensitive diagnostic ... regarding the cause ... Clinical #Video #Pupils
Adie’s Tonic Pupil on Physical Exam

A young female was referred in for a sudden onset anisocoria.
Adie’s Tonic Pupil ... Adie’s tonic pupil ... , the affected pupil ... Failure of the pupil ... nerve palsy.