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Sense Organs - Eye Structures & Procedures

AB
3# of layer in the inner eye
120 Million# of rods in each eye
6 Million# of cones in each eye
Cataract SurgeryRremoval of a cataract.
ChoroidContains blood vessels that supply nutrients to the eye
Ciliary BodyContains muscles that adjust the shape of the lens
Ciliary BodyProduces aqueous humor
ConesResponsible for bright-light vision
Conjunctival MembraneProvides lubrication and protection to the outer eye
CorneaCenter for focusing
CorneaConsists of five layers and is protected by tears
DiopterUnit of measurement to determine lens refractory power.
EnucleationSurgical removal of an eyeball
EyeballAnother term for the inner eye
EyelidsProvide protection from light, dust and trauma
Inner LayerConsists of retina, rods & cones
IrisColored part of the eye
KeratoplastyCorneal transplant
Lacrimal ApparatusProduces, delivers and drains tears from the eye
Lacrimal Glands and DuctsProduce and deliver tears
Laser PhotocoagulationThermal light energy used to treat retinal detachment or bleeding from retina
Middle LayerConsists of choroid, ciliary body, iris & pupil
Ocular MusclesProvides the eyeball with movement
OphthalmoscopyVisual examination of the inner eye
Orbital CavityThe eyeball fits into the _ _
Outer EyeConsists of the orbital cavity, extrinsic ocular muscles, eyelids, conjunctival membrane and lacrminal apparatus
Outer LayerContains the cornea & sclera
PupilOpening in center of iris, regulating the amount of light coming into the eye
Refraction TestExamination procedure to determine the eye's refractive error and the best corrective lenses needed
RetinaNerve layer of the eye containing rods and cones
RodsFunction in dim light - responsible for night vision
ScleraTough, white, fibrous, connective tissue that maintains shape of the eye and protects the inner layers of tissue
TonometryTest measuring intraocular pressure
TonometryTest to diagnose glaucoma
Visual Acuity TestTest measuring eye's ability to distinguish object details and shape


(AP) Human Geography Teacher
Lakeville South High School
Lakeville, MN

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