abnormal*rational for eyes Flashcards
acute onset of floaters occurs with:
retinal detachment
halos around lights occur with:
acute narrow-angle glaucoma
what is scotoma?
blind spot surrounded by an area of normal or decreased vision
occurs in glaucoma, optic nerve disorders
night blindness occurs in:
optic atrophy, glaucoma, vit A deficiency
what sudden onset of symptoms requires emergency referral?
pain, floaters, blind spot, loss of peripheral vision
what common eye disorders cause no pain?
cataract, glaucoma
lacrimation is:
eye tearing
epiphora is:
excessive tearing
purulent drainage in eye look like:
thick/yellow
night crusts
some medications affect the eyes- what may prednisone cause:
cataracts or increase intraocular pressure
at what age does the aging adult need annual screening for vision changes/eye-related diseases?
60 or 65 y.o
eye lid lag occurs in what disorder?
hyperthyroidism
ptosis is:
drooping of the upper eye lid
enophthalmos is :
sunken eyes
pallor near outer canthus lower lid may indicate:
anemia
scleral icterus is:
even yellowing of sclera extending up to the cornea
indicates jaundice
with unequal-size pupils consider:
central nervous system injury
cataracts appear as ____ , ____ areas against the red reflex
opaque
black
abnormal optic disc characteristics:
pallor hyperemia irregular shape blurred margins cup extending to disc
normal color/shape/margin/cup ratio of optic disc:
creamy yellow-orange-pink
round/oval
district/sharp margins
width not more than one-half disc diameter
retinal vessels normal findings:
- 4 vessels
- arteries brighter than veins
- artery-to-vien width ratio is 2:3 or 4:5
- caliber decrease as extend
- okay to cross path
- bilateral mild vessel twisting okay
- pulsations present
retinal vessels checklist:
- number
- color
- A:V ratio
- caliber
- A-V crossing
- turtuosity
- pulsations