Eye Assessment Flashcards
Eyelids
protects eye, filter out dust and dirt
Palpebral Fissure
open space between the eyelids
Limbus
border between cornea and sclera
Canthus
corner of the eye
Caruncle
small fleshy mass at inner corner containing sebaceous glands
Tarsal Plates
strips of connective tissue, contain the meibomian glands, secrete oily lubricating material
Conjunctiva
thin mucous membrane
The conjunctiva includes
palpebral conjunctiva and bulbar conjunctiva
palpebral conjunctiva
lines the lids
bulbar conjunctiva
overlays the eyeball with the white sclera
lacrimal apparatus
provides constant irrigation
puncta
absorb tear drainage (upper and lower lids at the inner canthus)
Extraocular Muscles
6 muscles attach to the eyeball and give the eye movement
2 Types of Extraocular Muscles
rectus and oblique muscles
Rectus Muscles
4 straight
Oblique Muscles
2 slanting
Internal Eye
sphere shaped, consists of 3 layers: sclera, choroid, and retina
Sclera
outer fibrous, protective white covering
Choroid
middle vascular, dark pigmented layer
delivers blood to the retina and prevents light from reflecting internally
Choroid consists 3 parts
pupil, lens (focus) and anterior chamber
anterior chamber of the choroid
continuous flow of fluid
serves to deliver nutrients to surrounding tissues and drains metabolic waste.