36 results
Mydriasis and Miosis - Differential Diagnosis Framework

Causes of Mydriasis:
Dilated pupils (mydriasis) more than 7mm
 • Unilateral
Mydriasis and Miosis - Differential ... response, Serotonin syndrome ... Miosis: Horner's syndrome ... Robertson pupils), DM, SAH ... #diagnosis #ophthalmology
Pupils: Localization in Coma
 • Small, Reactive pupils: Metabolic coma.
 • Unilateral Fixed, dilated pupil :
Bilateral, Large ... • Bilateral, midposition ... • Horner's syndrome ... Localization #Coma #Neurology ... #differential #
Causes of Anterior Uveitis - Differential Diagnosis
Anterior Uveitis - 90% of cases of Uveitis
 • Inflammation
Anterior Uveitis - Differential ... Posner-Schlossman Syndrome ... /bilateral up to ... Anterior #Uveitis #Differential ... Diagnosis #Causes #ophthalmology
Unilateral Fixed Dilated Pupil - Differential Diagnosis Framework
If Altered Mental Status - Consider Oculomotor (3rd cranial
Unilateral Fixed ... Dilated Pupil - Differential ... lntracranial hemorrhage, SAH ... Dilated #Pupil #differential ... #diagnosis #neurology
Photophobia and Headache - Differential Diagnosis Framework

Why?
• The coexistence of photophobia and headache suggests the potential
and Headache - Differential ... subarachnoid hemorrhage (SAH ... Photophobia #Headache #differential ... #diagnosis #ophthalmology ... #Neurology
Secondary Causes of Hypertension - Differential Diagnosis Algorithm
Hypertension - BP > 140/90 (>130/80 for DM)
Hypertensive urgency
Hypertension - Differential ... • Nephritic syndrome ... • Bilateral RAS ... HTN #Secondary #Nephrology ... #Differential #
Neuro-OphthaImoIogy - Visual Field Defects - Localization Map
 - Optic Nerve Lesion (Monocular vision loss)
 -
Neuro-OphthaImoIogy ... hemianopia) - Lateral ... NeuroOphthaImoIogy #Neurology ... #Differential # ... Anatomy #Causes #Ophthalmology
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
dissociaton; • Usually unilateral ... Holmes-Adie Syndrome ... Young females Differential ... #PhysicalExam #neurology ... #ophthalmology
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
One-and-a-half Syndrome ... #Localization #ophthalmology ... #neurology #differential
Urine Specific Gravity - Interpretation
Specific Gravity = Density of urine / Density of water
SG close to
Density of water SG ... to ADH) • ATN SG ... Dehydration • SIADH (syndrome ... Interpretation #diagnosis #differential ... #nephrology