35 results
Central Retinal Vein Occlusion (CRVO)
 - Pathophysiology not fully understood; possibly due to thrombus located in
Occlusion (CRVO) - Pathophysiology ... Second most common cause ... disease (Most common cause ... ) #Clinical #Ophthalmology
Hordeolum vs Chalazion

Hordeolum (Stye):
 • Location: Most commonly found at or near an eyelash follicle
 •
eyelash follicle • Cause ... upper lid • Cause ... antibiotic eyedrops, surgery ... Diagnosis #Management #Ophthalmology
FIGURE 2. CHALAZION.  

Hordeola and chalazia are two common causes of the red, swollen eyelid
are two common causes ... #Clinical #Ophthalmology ... #Photo #Chalazion
Menstrual Cycle Physiology: Ovarian Cycle – Ovulation Explained

Around Day 14, estrogen exerts sudden +++ positive feedback
understood) -> surge ... and release LH causes ... hours after LH surges ... #OvarianCycle #pathophysiology
Horner's Syndrome on Physical Exam

A 75yoF was referred in for facial swelling and eyelid changes 1
following neck surgery ... experience, the cause ... induced by treatment/surgery ... ; as in our case ... clinical #video #ophthalmology
Venous Thrombosis vs Arterial Thrombosis - Differential Diagnosis Framework

VENOUS THROMBOSIS

 • Acquired Risk Factors:
	- >48 hours
admission - Surgery ... Malignancy • Surgery ... considered in all cases ... coagulation and other causes ... Venous #Arterial #pathophysiology
Horner's Syndrome: Loss of sympathetic nervous system input to (in this case) right eye. 
Note that
input to (in this case ... etiology in this case ... Images #Clinical #Ophthalmology ... #Photo #Horners
Chronic Hypertensive Retinopathy: Pathogenesis and clinical findings

Ophthalmic Artery Hypertension
Stage 1: Mild/vasoconstrictive
 • Acute and chronic vasospasm
hyalinization causes ... BRB breakdown causes ... disc arterioles causes ... #Retinopathy #pathophysiology ... #ophthalmology
Cauda Equina Syndrome
Causes:
 • Large lumbar degenerative disc herniation (central)
 • Severe lumbar spondylosis
 • Neoplasm
Equina Syndrome Causes ... immediate MRI and surgery ... Syndrome #MSK #pathophysiology
Diabetic Retinopathy: Pathogenesis and clinical findings

Mild Non-proliferative DR
 • Outpouchings of the weakened capillary walls or
retinal ischemia causes ... Retinopathy #Diabetes #ophthalmology ... complications #pathophysiology