25 results
Iridodonesis

Physical examination revealed iridodonesis, or “dancing” of the iris, which was elicited by rapid movement of
total or partial dislocation ... with Marfan’s syndrome ... #PhysicalExam #Video ... #Ophthalmology ... #Signs #Ocular
Vision Loss - Differential Diagnosis
Chronic: 
  - Cornea: Scarring, Edema
  - Lens: Cataracts
- Differential Diagnosis ... Chronic: - Cornea ... Cataracts - Macula: Macular ... Painless: Lens Dislocation ... #causes #ophthalmology
Blurry Vision - Differential Diagnosis Framework

Anatomical Approach to Eye Disease:
1. Lids/Lashes
2. Extraocular Muscles/Motility
3. Conjunctiva/Sclera
4. Cornea
5. Anterior
- Differential Diagnosis ... Ocular Adverse Effects ... edema • Lens dislocation ... #ophthalmology ... #causes
Adie's Pupil on Physical Exam

Adie's pupil is a neurological disorder characterized by a tonically dilated pupil
., light-near dissociation ... It is caused by ... PhysicalExam #clinical #video ... #ophthalmology ... #neurology #syndrome
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
One-and-a-half Syndrome ... Skew Deviation Casey ... #Localization #ophthalmology ... #neurology #differential ... #diagnosis #ocular
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
Neurologic ... a mass as the cause ... Cataract/Lens Dislocation ... Functional • Corneal ... #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 ... in 1855 by Ed Horner ... and discovered a syndrome ... #Overview #Ophthalmology ... #Diagnosis #Neurology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
"claw hand" ± Horner ... Syndrome Wrist ... Anterior Shoulder Dislocation ... Dermatomes #Myotomes #diagnosis ... #neurology #sensory
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
Holmes-Adie Syndrome ... no light-near dissociation ... • Other causes ... #PhysicalExam #neurology ... #ophthalmology
Ptosis - Differential Diagnosis Framework

Ptosis (Greek- to fall) Drooping of the upper eyelid that usually results
- Differential Diagnosis ... Neurogenic Ptosis - Neurologic ... nerve palsy • Horner ... #Ptosis #neurology ... #ophthalmology