23 results
Mydriasis and Miosis - Differential Diagnosis Framework

Causes of Mydriasis:
Dilated pupils (mydriasis) more than 7mm
 • Unilateral
- Differential Diagnosis ... Unilateral Mydriasis: CN ... : Horner's syndrome ... #differential #diagnosis ... #ophthalmology
CN III Palsy - Oculomotor Nerve
 • Ptosis: Loss of innervation of the levator palpebrae superior.
Nerve • Ptosis ... Ptosis is severe ... comparison to Horner's syndrome ... innervation to pupil ... Cranial #neurology #diagnosis
Pupillary Abnormalities  Overview
 - Unequal Pupils (anisocoria)
 - Tonic pupil (Adie's pupil)
 - OculomotorNerve (CN
Overview - Unequal Pupils ... (Adie's pupil) ... OculomotorNerve (CN ... - Homer's Syndrome ... #Diagnosis #Ophthalmology
Anisocoria - Pupillary Defects - Differential Diagnosis Algorithm

Physiological - Simple Anisocoria ( <O.5mm)
 - Anisocoria equal
- Differential Diagnosis ... Preganglionic - Ptosis ... Fascicle (Other CN ... #Algorithm #Causes ... #Ophthalmology
Anisocoria Evaluation Flow Chart - Differential Diagnosis
1. Check pupillary reaction to light 
2. Measure pupil size.
- Differential Diagnosis ... - Horner's Syndrome ... Anisocoria - CN ... #Differential #Diagnosis ... #Ophthalmology
Isocoria - Pupillary Defects - Differential Diagnosis Algorithm
Relative Afferent Pupil Defect
 • Optic Neuritis
 • Ischemic
- Differential Diagnosis ... Midbrain (Parinaud's Syndrome ... #Differential #Diagnosis ... #Algorithm #Causes ... #Ophthalmology
All About Horner's Syndrome

Horner's syndrome, known as 
"oculosympathetic paresis" by people 
who don't have friends, is
have friends, is caused ... classically results in ptosis ... (constricted pupil ... #Overview #Ophthalmology ... #Diagnosis #Neurology
Horner's Syndrome: Loss of sympathetic nervous system input to (in this case) right eye. 
Note that
Horner's Syndrome ... Note that right pupil ... left (known as ptosis ... Images #Clinical #Ophthalmology ... #Ptosis #UCSDH
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
• Look for ptosis ... depressed, abducted, ptosis ... large/unreactive pupil ... #Algorithm #Causes ... #Ophthalmology
Horner's Syndrome on Physical Exam

A 75yoF was referred in for facial swelling and eyelid changes 1
and ptosis (both ... consistent with a diagnosis ... experience, the cause ... how the right pupil ... clinical #video #ophthalmology