eye anatomy

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diseases and anatomy of the eye

bones that comprise the orbit

frontal, zygomatic, sphenoid,maxillary, ethmoidal, lacrimal, platine

proctosis

bulging of the eye

cranial nerve V

sensation

medial rectus muscle

rotates eye inward

lateral rectus muscle

rotates eye outward

inferior oblique muscle

twists eye up and outward

superior oblique muscle

twists eye down and inward

superior rectus muscle

turns eye upward

inferior rectus muscle

turns eye downward

plapebral fissure

opening between the upper and lower eyelid

cranial nerve 7

facial nerve

lacrimal gland

produces tears

meibomian glands

secretes oil for the tear film to lubricate the outter surfaceof the eyeball

obicularis oculi

muscle that closes the eye

levator palpebrae

raises upper lid

how many rectus muscles

4

glands involved with blepharitis

meibomian

common cause of tearing in newborn infants

nasolacrimal duct obstruction

layers of tear film

3

cornea

respnsible for most amount of focusing

volume of the eye

30 cc

contributes to the most diopteric power

cornea

trabecular meshwork

contributes to aqueous outflow

gonioscopy

examination of the angle of the anterior chamber of the eye to determine ocular motility and rotation and diagnose and manage glaucoma

annulus of zinn

opening that transmits cranial nerves III, V, VI, but not IV

cranial nerve V

supplies sensation to the face (around the eye)

exophthalmometer

measures proptosis by greater than 2mm difference between two eyes

cellulitis

deep skin infection from sinus infection

orbital cellulitis

can spread into the brain

capillary hemangiomas

occurs at age 6 months to a year

cavernous hemangioma

abnormal growth of vessels

orbital floor fracture

can't look up, lack of use of inferior rectus

basal cell carcinoma

most common eyelid malignancy

ectopian

outward turn of eyelid

entropion

inward turn of eyelid

dermatochalasis

redundant eyelid skin

amblyopia

unilateral or bilateral reduction of best corrected visual acuity not attributed to a structural abnormality

wilsons disease

excess copper deposition

pediatric glaucoma

photophobia, epiphora, blepharospasm

lens dislocation

marfan's syndrome

ROP

happens with a small birth weight

central scotoma

damage to macula

arcuate scotoma

glaucoma

bitemporal hemianopia

temporal side of both

papilledema

increased intracranial pressure

optic neuritis

pain with eye movement

obliques

behind

palpebral fissure

opening between your upper and lower eyelid

levator muscle

lifts eyelid

orbicularis oculi

functions as a sphincter, vonluntary

meibomian glands

sebaceous glands

lacrimal gland

produces tears, drainage system for tears

conjunctiva

composed of fornical, palpebral, bulbar

choroid

supplies the retina a lot

pseudomonas aeruginosa

most common bacteria in eye drop solutions

carotid artery disease

stroke risks, ocular ischemic syndrome

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