27 results
Argyll Robertson Pupil
Definition:
 - Irregular and small (1-2mm) pupil
 - Light-near dissociation (accommodation remains intact)
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Argyll Robertson Pupil ... small (1-2mm) pupil ... - Light-near dissociation ... intact) - Usually bilateral ... neurology #diagnosis #ophthalmology
Travel History - Clues to Infectious Disease Diagnosis in a Traveler 
 • Where did you
Clues to Infectious ... Geographic disease association ... → Leptospirosis ... Herpesvirus B infection ... InfectiousDiseases #Infections
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
• Light-near dissociaton ... ; • Usually unilateral ... no light-near dissociation ... • Other causes ... PhysicalExam #neurology #ophthalmology
Mydriasis and Miosis - Differential Diagnosis Framework

Causes of Mydriasis:
Dilated pupils (mydriasis) more than 7mm
 • Unilateral
Diagnosis Framework Causes ... , Adie's tonic pupil ... Hypothermia Causes ... differential #diagnosis #ophthalmology ... #causes
Isocoria - Pupillary Defects - Differential Diagnosis Algorithm
Relative Afferent Pupil Defect
 • Optic Neuritis
 • Ischemic
Relative Afferent Pupil ... Neuropathy Constricted Pupils ... Syphilis (light-near dissociation ... Diagnosis #Algorithm #Causes ... #Ophthalmology
Faget Sign - Pulse-Temperature Dissociation
Causes of Relative Bradycardia
 • Infectious Causes: Legionella, Psittacosis, Q fever, Typhoid
Pulse-Temperature Dissociation ... Bradycardia • Infectious ... Babesiosis, Malaria, Leptospirosis ... fever • Non-Infectious ... #Temperature #Dissociation
Adie's Pupil on Physical Exam

Adie's pupil is a neurological disorder characterized by a tonically dilated pupil
i.e., light-near dissociation ... It is caused by ... viral or bacterial infection ... which causes inflammation ... clinical #video #ophthalmology
Faget's Sign & Liebermeister's Rule
Pulse-Temperature Dissociation
EVERY 1 F RISE IN TEMPERATURE -> HR INCREASES 8-10 BPM
INFECTIOUS
INCREASES 8-10 BPM INFECTIOUS ... CAUSES • Legionella ... • Malaria • Leptospirosis ... • Fever OTHER CAUSES ... the most likely infection
Differential Diagnosis for Vision Loss
Unilateral, Painful Vision Loss:
 • Corneal abrasion, Acute angle-closure glaucoma, Inflammation-iritis, uveitis,
Retro-orbital hematoma, Infection-including ... occlusion, Lens dislocation ... #bilateral #painful ... differential #diagnosis #causes ... #ophthalmology
Proptosis - Differential Diagnosis - Unilateral vs Bilateral
Unilateral:
 • Infections (can become bilateral with cavernous sinus
vs Bilateral Unilateral ... : • Infections ... : • Infections ... #Bilateral #Causes ... #ophthalmology