eyes terminology Flashcards
canthus
inner corners of the eyes
palpebral fissure
area between the top and bottom eyelids
cornea
front of the eye, translucent
sclera
white outside layer of the eye
conjunctiva
mucous membrane covering front eye and lines inside 9eyelids
lacrimal apparatus
your tear system
extraocular muscles (EOMs)
control movement of the eyes
retina
light-sensitive layers of nerve tissue in the back of the eye
ptosis
drooping of eyelid
chalazion
small bump in eyelid; result of blockage of a tiny oil gland
conjunctivitis
swelling of the conjunctiva, pink/red sclera
pupillary light reflex
pupil constricts
accommodation
reflex when eyes focus on a closer object from a distant object (when you move your finger closer to your nose)
presbyopia
farsightedness
cataracts
cloudy area in your eye lenses
glaucoma
causes vision loss + blindness (damaged optic nerve)
macular degeneration
eye disease that blurs central vision
retinopathy
damage to blood vessel tissue at the retina
strabismus
both eyes do not line up
nystagmus
involuntary movement of the eyes (side-to-side, up-and-down, circular)
exophthalmos
protrusion of one or both eyes
hordeolum
stye; red, tender bump on edge of eyelid
corneal reflex
when something touches the eye and causes the eyes to blink
macula
back of the retina, responsible for central vision
lens
clear, curved disk; sits behind iris
optic disk
round, white light spot of retina
fixation
maintains gaze on a single location
diplopia
double vision
optic nerve
attached to retina, sends messages from eyes to brain
amblyopia
lazy eye; poor vision in one eye
anisocoria
unequal pupil sizes
blepharitis
eyelid inflammation
retinal detachment
retina is pulled away from its normal position