Eye Examination Flashcards
VA
visual acuity
OD
right eye
OS
left eye
OU
both eyes
cc
with corection
sc
without correction
tonometry used when…
acute narrow angle glaucoma is suspected
anterior chamber depth
indicated when narrow angle glaucoma is suspected prior to pupillary dilation
what is used when a corneal epithelial defect or abrasion is suspected
flourescein staining
upper lid eversion is important when
foreign body is suspected
confrontation visual field testing used when
to confirm a suspected visual filed defect suggested by pts symptoms and also used to document a normal visual field
what does tonometry measure
eye pressure
what is normal IOP
8-21 mmHg
20/20 and 20/70 are considered
near normal visual acuity
20/80 and 20/160 are considered
moderate to low vision
legal blindness
20/200 or less corrected with better eye or less than 120 degrees of field, severe low vision
swinging flashlight test is used for
afferent pupillary defect or marcus gunn pupil
sphincter adhesions are known ass
posterior synechiae
what is the red reflex
reflection of the light off the retina
increased cup:disc ration greater than .5 indiciates
gluacoma
what is the normal artery to vein ratio
2:3
where is the macula oriented
2 disc diamters temporally and slightly inferiorly to the optic disc
yellowish tint is due to
xanthophyll pigment
how is the anterior chamber depth estimated
shine a light from the temporal side of the cornea
