(Blank)
lacrim/o
tear
ocul/o
eye
opt/o
eye
phak/o
lens (lentil)
presby/o
old age
retin/o
retina
scler/o
hard or sclera
vitre/o
glassy
opia
vision condition
anterior chamber
fluid-filled space between the cornea and iris
ciliary body
ring of tissue behind the peripheral iris that is composed of ciliary muscle and ciliary processes
ciliary muscle
smooth muscle portion of the ciliary body, which contracts to assist in near vision
Ciliary processes
epithelial tissue folds on the inner surface of the ciliary body that secrete aqueous humor
Cornea
transparent anterior portion of the outer covering of the eye
eyelid
movable, protective fold that opens and closes, covering the eye; also called palpebra
Zeis glands
oil glands opening into the follicles of the eyelashes
tarsal glands
oil glands located along the rim of the eyelids; also called meibomian glands
lacrimal ducts
tubes that carry tears to the lacrimal sac
lens
the transparent structure behind the pupil that changes shape to help focus images on the retina
lens capsule
capsule that encloses the lens
pupil
black, circular opening in the center of the iris through which light passes as it enters the eye
retina
innermost layer that perceives and transmits light to the optic nerve
asthenopia
eyestrain (asthenia = weak condition)
blepharospasm
involuntary contraction of the muscles surrounding the eye causing uncontrolled blinking and lid squeezing
double vision
double vision