21 results
Argyll-Robertson Pupil on Physical Exam
Small (myotic), irregular pupil that do not react to light but do
Argyll-Robertson ... Physical Exam Small (myotic ... Medicalknowled1 #Argyll
Ocular Changes in Myopia
 • Emmetropia +2.0 D to -0.25 D
 • Myopia ≤-0.5 D
 •
Ocular Changes in Myopia ... to -0.25 D • Myopia ... -0.5 D • High myopia ... • Pathologic myopia ... D or -6.0 D #Myopia
Argyll Robertson Pupil
Definition:
 - Irregular and small (1-2mm) pupil
 - Light-near dissociation (accommodation remains intact)
 -
Argyll Robertson ... @neudrawlogy #Argyll
Myopic Retinopathy Fundoscopy Ocular Examination

Posterior staphylomas and patchy chorioretinal atrophy.

Dr. Sebastian Vega @oftalmopo

#Myopic #Retinopathy #staphyloma #atrophy
Myopic Retinopathy ... @oftalmopo #Myopic
Pupillary Abnormalities  Overview
 - Unequal Pupils (anisocoria)
 - Tonic pupil (Adie's pupil)
 - OculomotorNerve (CN
light indicate Argyll
Cardiac Myocyte Contractile cycle
 - Ca2+ binds to TnC → TnI is inhibited → conformational change
between actin and myosin ... - Myosin heads ... boat, to “row” myosin ... released from the myosin ... itself, allowing myosin
Visual Pathway Neural Lesions
A) Optic Nerve → Left Anopia
B) Optic Chiasm → Bitemporal Hemianopia
C) Lateral Geniculate
Optic Nerve → Left Anopia
Mydriasis and Miosis - Differential Diagnosis Framework

Causes of Mydriasis:
Dilated pupils (mydriasis) more than 7mm
 • Unilateral
CVA, Syphilis (Argyll
Characteristic clinical manifestations of Down syndrome 
 
Typical craniofacial appearance 
 • Round face and flat
cataracts, squints, myopia
Acute Rheumatic Fever: Pathogenesis and Clinical Findings

Delayed autoimmune reaction
-> Molecular mimicry
-> GAS antigen cross-reacts with host
->
Lymphocytes adhere to myosin