Eyes and Vision Problems Flashcards
(152 cards)
bony structure 4cm, 4 sided pyramid,
surrounded by sinuses
Orbit
Sinuses that surround the orbit
Ethmoid (medially)
Frontal (superiorly)
Maxillary (inferiorly)
protect the anterior portion of the
eye, multiple glands, including sebaceous,
sweat, and accessory lacrimal glands;
innervated by the oculomotor nerve (CN III).
Eyelids
CN III- controls the eyelids
oculomotor nerve
3 Layers of tears
Lipoid, aqueous, and mucoid
lacrimal gland and the accessory
lacrimal glands;
Tears
it comprises of 4 rectus muscles and 2 oblique
Extraocular muscles
CN that innervated extraocular muscles
cranial nerves (CN) III, IV, and
VI.
barrier and nourishes the eye
Conjunctiva
Produce and secrete lubricating mucus
Goblet cells
conjunctiva in sclera
Blulbar conjunctiva
conjunctiva in eyelids
Pelpebral conjunctiva
junction in conjunctiva
Fornix
conjunctiva meets cornea
Limbus
white of the eye, maintains shape
Sclera
color of the sclera in children
bluish tinge
color of the sclera in elderly
yellowish
main refracting surface of the eye; 5 Layers
Cornea
behind cornea,filled with continually replenished supply of clear aqueous humor, which nourishes the cornea
Anterior chamber
produced by the ciliary body, related to the intraocular pressure
Aqueous humor
normal IOP
10-21 mmHg
Consists of Iris, Ciliary Body, Choroid
Iris
Uvea
Colored part of the eye, highly
vascularized, pigmented collection of
fibers surrounding the pupil.
Iris
dilates and constricts in response to light, round and constrict symmetrically when a bright light shines on them,
Pupil