Anatomy of the orbit. How many bones? - ANSWER Frontal bone
Spheniod
Zygomatic
maxilla
Palantine
Lacrimal
Ethmoid
7 bones in all
Lacrimal Gland
Lacrimal Duct
Nasolacrimal duct - ANSWER Secrete aqueous layer of tear film
Drainage system for tears
,Carries tears from eyes to nasal cavity
Blepharitis - ANSWER chronic inflammation of lid margin • Redness, thickening of eyelid
Hordeolum - ANSWER "stye," when one of the glands of the eyelids become inflamed
and blocked
Functions of the extraocular muscles - ANSWER look in ppt or notebook
Amblyopia - ANSWER loss of vision in one or both eyes
Caused by refractive error or strabismus
Better treated while young
"lazy eye"
Esotropia - ANSWER form of strabismus which causes one or both eyes to turn inward
• May be constant or intermittent
Nystagmus - ANSWER repetitive rhythmic movements of one or both eyes(Side to side,
up and down or circular)
Anatomy of eye (anterior segment) - ANSWER -
Sclera
Conjunctiva
Cornea
Limbus
Ciliary Body
Ciliary Muscles
Ciliary Processes
, Iris
Pupil
Lens
Posterior segment - ANSWER -
Vitreous
Optic Nerve
Macula
Retina
Choroid
Sclera - ANSWER tough, white, fibrous outer protective layer of the eye, continuous with
cornea and protective sheath covering optic nerve
Scleritis - ANSWER Severe inner eye inflammation of sclera
Episcleritis - ANSWER benign outer inflammation of sclera
Conjunctiva - ANSWER loose connective tissue that lines
neyelids and covers sclera, stabilizes tear film
Types of conjunctivitis - ANSWER Bacterial
Viral
Allergic
Pinguecula - ANSWER thickening of connective tissue on
sides of cornea(3 & 9 o'clock)
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