21 results
Vision Loss - Differential Diagnosis
Chronic: 
  - Cornea: Scarring, Edema
  - Lens: Cataracts
Vision Loss - Differential ... Chronic: - Cornea ... Painless: Lens Dislocation ... #Diagnosis #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
Blurry Vision - Differential ... Ocular Adverse Effects ... edema • Lens dislocation ... #diagnosis #ophthalmology ... #causes
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 ... Iris #SlitLamp #PhysicalExam ... #Video #Ophthalmology ... #Signs #Ocular
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
Holmes-Adie Syndrome ... Young females Differential ... no light-near dissociation ... • Other causes ... #neurology #ophthalmology
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
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 ... #Adies #Pupil #PhysicalExam ... clinical #video #ophthalmology ... #neurology #syndrome
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
Double Vision - Differential ... • Neurologic ... Cataract/Lens Dislocation ... Functional • Corneal ... #Ophthalmology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
"claw hand" ± Horner ... Syndrome Wrist ... Anterior Shoulder Dislocation ... Myotomes #diagnosis #neurology ... sensory #motor #arm #physicalexam
Ptosis - Differential Diagnosis Framework

Ptosis (Greek- to fall) Drooping of the upper eyelid that usually results
Ptosis - Differential ... nerve palsy • Horner ... #Ptosis #neurology ... #Differential # ... Diagnosis #ophthalmology
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 ... Iris #SlitLamp #PhysicalExam ... #Video #Ophthalmology ... #Signs #Ocular