Eye Review Flashcards
what is argyll-robertson pupil?
pupil constricts on accomodation, NOT to light
what is a Amsler Grid?
to detect centremost region of visual field
scotomas and metamorphopsia
what is leukocoria?
white pupil, don’t get red reflex, sign for retinoblastoma
when to do cornea reflex?
before anaesthetics
common virus that affects cornea?
Herpes
fundus, how does arteries versus veins look?
arteries are thinner
fastest way to detect refractive errors?
pinhole
Needing reading glasses due to aging is called what?
presbyopia
primary open angle glaucoma (causasian eyes)
primary closed angle glaucoma (Asian eyes)
blockage in the trabecular meshwork
primary open angle glaucoma on fundoscopy looks?
higher cup to disc ratio
increase IOP
main pathological process in diabetic retinopathy?
neovascularisation or disc and elsewhere
retinal hemorrhage
vitreous
glaucoma
most common risk of macular degeneration?
smoking
causes of 3rd nerve palsy? what if it’s painful?
aneurysm (pain need angiography)
Vascular (HTN, GCA)
trauma
what dose 4th nerve palsy show? main cause?
tip, turn, tilt
torsional diplopia
cause: trauma, congenital usually
classic cause of altitudinal defect, uniocular
anterior ischaemic optic nerve neuropathy
