Ophthalmology II Flashcards
is disc edema the same as papilledema?
no
what is papilledema?
IOP causing disc edema
what are the signs of papilledema?
- hyperemia of disc
- tortuosity of vessels
- blurring and elevation of disc
- bilateral
- good vision until chronic
- absence of SVP
what is the etiology of papilledema?
- brain tumors / space occupying lesions
- idiopathic intracranial HTN
- cerebral trauma or hemorrhage
- dural sinus thrombosis
what are the symptoms of idiopathic intracranial HTN (pseudotumor cerebri)?
- cephalgia
- visual obscurations
- pulsatile tinnitus
- horizontal diplopia
- pain on EOM
what are the symptoms of optic neuritis?
- classic afferent pupillary defect
- decreased vision
- color (red) desaturation
what is one major etiology of optic neuritis?
MS
what are the symptoms of papillitis - anterior optic neuritis?
- disc edema, hyperemia, tortuosity
- generally unilateral
- RAPD
- poor vision
what are the symptoms of retrobulbar neuritis?
- NO disc edema
- pain on EOM
- RAPD
is there disc edema with retrobulbar neuritis?
no
how can you tell the difference between papilledema and neuritis?
papilledema - good vision, no pupillary defect
what is the appearance in optic atrophy?
pallor of optic nerve
what is charles bonnet syndrome?
- decreased vision (less than 20/80)
- often ARMD
- visual hallucinations (pleasant)
- patient aware hallucinations are not real
equal pupils but positive RAPD?
unilateral optic nerve lesion
what tests should you do for abnormal optic nerve?
VA and VF
