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61 Cards in this Set
- Front
- Back
The adult eyeball measures?
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2.5cm in diameter
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The wall of the eyeball is constructed of three layers;
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Fibrous tunic
Vascular tunic Retinaor nervous tunic |
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The vascular tunic of the eye has 3 parts
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Choroid
Ciliary body Iris |
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The Fibrous Tunic consists of :
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Anterior cornea
Posterior sclera |
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Anterior Cornea is a?
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Non-vascular
transparent coat that covers the coloured irs Helps focus the light due to its curve |
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What is the outer survace of the anterior cornea?
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Non-keratinized stratified squarmous epithelium
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What is the middle coat of the Anterior (front) Cornea?
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Collagen fibres and fibroblasts
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Simple squamous epithelium of the Anterior Cornea is?
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Inner surface Cornea
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The Posterior Sclera is what colour?
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White
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The Posterior (back) Sclera or white of the eye is made of what type of tissue
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connective tissue
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The Sclera or white of the eye is made of
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connective tissue made of mostly collagen fibres and fibroblasts.
Except for the cornea |
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Shape, rigidity and protects the sclera?
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Connective tissue
Collagen fibres fibroblasts |
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What is the vascular tunic/uvea
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Middle layer of the eyeball
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How many portions does the vascular or middle layer of the eyeball have?
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3
Choroid Ciliary body Iris |
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What does the choroid do?
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Middle layer of the eyeball.
Lines internal surface of the sclera. Provides nutrient to posterior retina. |
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Function of eye?
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Lubricate
Cleanse Protect |
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Fibrous tunic - superficial coat of the eyeball and consist of ?
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Cornea (anteriorly)
Sclera (posteriorly) |
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Cornea (anteriorly)
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Transparent, avascular coat.
Covers the iris. Curved, helps to focus light on the retina |
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Sclera (posteriorly)
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White part of the eye
Dense, connective tissue. Covers the entire eyeball except the cornea. Rigidity gives shape Protects |
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Sclera?
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The sclera is Choroid
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Sclera?
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Vascularized
Blood vessels supply nutrients to the posterior surface of the retina. Melanocytes in choroid produce melanin. Gives the choroid black appearance Absorbs light. Prevents scattering of light in retina |
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Iris is?
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The pupillary sphincter
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Bright light muscles contract decreasing?
(circular muscles) |
the size of the pupil.
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In light - muscles dilate, increasing ?
(radial muscles) |
size of the pupil.
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Iris is responsible for ?
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colour of eye
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Rods?
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Black and white vision.
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Cones?
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Colour vision
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Highest concentration of cones ?
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Central fovea
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Lense sits just behind ?
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Iris
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Suspensory ligaments?
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lens in place
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Anterior cavity is?
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Acuous humour
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Anterior & posterior chamber & ducts are pressed from pressure?
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Glaucoma
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Vitreous chamber is between the lens &?
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Retina
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Which part of the retina has the highest concentration of rods?
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Periphery of Retina
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What are the name of the muscles that move your eyes?
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Intrinsic eye muscles
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Ignatz Von Peczely - Hungary
Liljequist - Austria Schlegel - Germany Felke - Germany Lane - Austria |
1850-1940
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Dr Collins - USA
Lindlahr - USA |
1900 - 1950
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Angerer
Dr Deck Kriege Bernard Jensen Dr Ferrandiz - Spain Dorothy Hall - Australia |
1950 - 2000
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Limitations of iridology
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No definate diagnosis of disease name
No measurements No sex No Time or cause No Cause of death |
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Scope
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Strength or weakness
Under / over function Hyper/hypo Potential problem due to under/over Congestion |
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1st Major Zone
Closest to pupil |
Digestion Zone
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2nd Major Zone
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Muscles
Bones Organs of fluid distribution |
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3rd Major Zone
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Absorption
& Elimination |
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1st minor Zone
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Pupillary edge
CNS Stomach |
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2nd minor zone
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Intestines
Digestion Absorption |
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The 3 cell types that contain pigments within the iris?
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Stromal melanocytes
Iris pigment epithelium Clump cells |
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Newborns have what colour eyes?
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Blue
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5 stages of tisue activity
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Acut
Sub acute Slowing down Hypocactive Chronic Degenerative |
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Actue Colour
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White
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White indicates
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Inflammation
Uric acid crystalline |
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Yellow /white indicates
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sub acute
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Yellow indicates
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slowing down
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Grey indicates
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Hypoactive
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Brown
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Chronic
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Black
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Degeneration
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White - Acute Stage indicates?
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Inflammation
The whiter the more acute Uric acid Arteriosclerosis Cholesterol Excess salt Rigidity - hardening personality |
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Yellow-White - Sub Acute stage indicates?
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Hormone, enzyme & digestive increase
Eliminative process more active Fatique, thirst, low resistance Sensitivity to stress |
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Yellow - slowing down indicates
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Kidney disturbance
Toxins collect Metabolism slowing |
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Grey - Hypoactive stage
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Low digestive juices
Poor vitality Elimination slows Metabolism slows |
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Brown - chronic stage indicates
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Liver toxicity
toxic accumulation low oxygen Symptoms - exhaustion, weak immunity |
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Black - degenerative stage indicates
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Final destruction of nerve fibres
Accidents Degenerated tissue Advanced stage of chronic disease |