Term
Different types of CN III palsy |
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Definition
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Term
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Definition
- congenital due to birth trauma or neurologic syndrome
- kids- post viral infection, trauma, tumors
- adults- ischemia/microvascular problem (MAJOR), aneurysm, trauma, tumors
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Term
When should you order a CT scan when noticing CN III palsy |
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Definition
if you notice a loss in pupil function, there could be a tumor causing it so a CT scan is needed |
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Term
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Definition
- ptosis
- ophthalmoplegia EXCEPT lateral down gaze
- enlarged pupil
MUST LOOK FOR OTHER NEUROLOGIC DEFICITS OR OTHER CN PALSIES!!! |
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Term
Differential for CN III Palsy |
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Definition
- myasthenia gravis
- graves disease
BOTH are type 2 hypersensitivities |
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Term
Diagnosis of CN III Palsy |
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Definition
- evaluation- good ophthalmic examination with emphasis and pupil rxn
- work up- imaging (esp. if pupil involved)
- labs- blood sugar
- check bp
- good prognosis for microvascular abnormalities
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Term
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Definition
- anything that could weaken superior oblique
- usually trauma or microvascular diagnosis
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Term
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Definition
- evaluation- ophthalmic exams, labs (fasting blood sugar), check bp, MRI if doesnt resolve
- prognosis- good for microvascular diagnosis (usually resolves within 3-4 mnths)
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Term
Most common complaint in CN IV palsy |
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Definition
most common complaint is double vision |
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Term
etiology and common complaint of CN VI palsy |
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Definition
- etiology
- 0-15 yrs- intracranial tumors
- 15-40 yrs: MS, misc.
- over 40: microvascular diagnosis
- complain of horizontal binocular diplopia
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Term
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Definition
- differential- Graves, MG
- evaluation
- history, neuro-opth. exam
- imaging
- bp and blood sugar
- lumbar puncture if suspect increased intraocular pressure
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Term
management of CN VI palsy |
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Definition
- treat underlying cause
- ex: if HTN, decrease bp
- ex: decrease ICP
- decrease blood sugar
- observe and can patch one eye
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Term
myasthenia gravis (def., symptoms) |
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Definition
- def.- systemic disease of neuromuscular junction
- symptoms
- muscle weakness
- hallmark variability and fatigability
- cause- Ab's to ACh R's in striated muscle
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Term
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Definition
- asymptomatic
- ptosis
- diplopia
- strabismus
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Term
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Definition
- mainly in females
- increase incidence of thyroid disease or other autoimmune diesae
- 90% have ocular involvement and 75% have initial manifestation
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Term
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Definition
- evaluation
- anti-ACh receptor Ab;s
- thyroid function test
- CT of chest
- tensilon test
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Term
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Definition
- oral AChE
- steroids
- surgery for thymoma
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Term
Papiledema (what causes it, symptoms) |
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Definition
- cause- optic disc swelling caused by increased ICP
- symptoms
- asymptomatic
- HA
- nausea
- diplopia
- altered mental status
- any neurologic defects
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Term
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Definition
- NI or decreased vision
- decreased color vision
- disc edema
- hemorrhages
- cotton wool spots
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Term
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Definition
- mass
- pseudotumor
- venus sinus thrombosis
- meningitis
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Term
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Definition
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Term
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Definition
- def.- unilateral or bilateral loss of vision in an otherwise anatomically normal eye
- cause
- strabismus (most common)
- in kid with constant misaligned eyes leading to inhibition of visual input to deviate eye
- mechanism to suppress double vision
- uncorrected refractive error
- deprivation
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Term
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Definition
occlusion therapy of better seeing eye with surgery once vision equal between the two eyes |
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Term
Leukocoria (def., what it can cause, causative agent, treatment) |
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Definition
- def.- white pupil
- causes
- decrease vision
- eye turn
- abnormal eye size
- causative agent
- cataract
- retinoblastmoa
- retinopathy
- toxoplasmosis
- need to evaluate and treat to prevent amblyopia
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Term
congenital glaucoma (def., cause, associated complications, symptoms, treatment) |
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Definition
- def.- glaucoma from birth to 3 months age
- caused by increase intraocular pressuree
- associated with tearing, photophobia, blepharospasm
- symptoms
- decrease vision
- cornea edema
- enlarged eye
- treatment- medical or surgical to prevent vision loss
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