yellow pages: neuro-ophthalmology, cognition Flashcards
Chronic steroid use is associated with what kind of neuro-opthalmologic problem?
Catarcts
What is another name for amblyopia ex anopia?
lazy eye
Visual sx of optic neuritis?
Pain with eye movement, “dimming” of vision due to central scotoma
Sx of basilar migraine?
dizziness, slurred speech, double vision —> severe headache, vomiting
Sx of corneal abrasion?
Diplopia only in one plane; prior trauma; preservation of visual acuity
Visual field changes: papilledema
Enlargement of blind spot, nasal step
Cortical blindness: risk factors
Transplant patients (calcineurin inhibitors esp. tacrolimus), chemotherapy patients
Ciliary / choroidal circulation supplies:
Choroid, outer retinal layers and optic nerve head
Central retinal artery supplies:
Inner retinal layers
AION involves
optic nerve head, may see disk edema
PION involves
retrobulbar, normal-appearing disk
ION: presentation
painless vision loss developing over hours-days, blurred vision, altitudinal VF defect
ION: risk factors
Congenitally small optic cup, HTN, diabetes, systemic blood loss
PION: special risk factor
Spinal surgery in prone position w/prolonged anesthesia times, hypotension, and pressure over the eye; VF loss is usually irreversible
Drug causes of ION?
amiodarone, IFN-a, nasal decongestants, PDEis
