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The Human Eye

The Human Eye definitions from science

TermDefinition
Cornia Protects the lens and helps to focus light
Anterior Chamber contains aqueous (watery) humor
Pupil where the light enters our eyes, allows us to see
Iris controls the size of the pupil helping us see in different amounts of light
Canal of Schlemm drains aqueous humor from anterior chamber into blood stream
Zonular Fibrils carry forces from the ciliary bodies to help shape properly shape the lens
Lens helps focus light to the retina
Ciliary Body controls the shape of the lens
Sclera outer protective covering of the eye, continuous with the cornia
Choroid vascular layer of the eye, carries oxygen to cells and waste products away
Retina converts light to electrical energy
Macula region of the retina where light is focused, keenest vision is here, responsible for fine details for reading, color reception, driving a car, recognizing faces, etc.
Optic Nerves sends electrical signals to the brain
Posterior Chamber contains vitreous (glassy) humor
Optic Disc region where optic nerve extends to the brain, AKA "blind spot"
Glaucoma A condition in which internal eye pressure becomes too high, damaging the retina
How do we maintain proper eye pressure? By draining the humors of the eye properly, the canal of schlemm is key!
Huygens Principle Every point on a wave front acts as a distinct point source for light; distributing that light evenly in all directions
Refraction the bending of light through different objects/spaces
Which way does light refract from less dense to more dense? Toward the normal line
Which way does light refract from more dense to less dense? Away from the normal line
Normal Line The point where the light goes from on object/space to the new object/space, always perpendicular to the mid line
Created by: ekrahe
 

 



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