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7 Cards in this Set
- Front
- Back
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True or False: The cornea has blood vessels?
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False.
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How does the cornea receive oxygen and nutrients?
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via diffusion from the aqueous humor
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Explain visual filling
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Brain cells are filling in the image where the blind spot is located. (Optic disc)
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What is the optic disc?
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Where the optic nerve leaves the rear of the eye. Also known as the blind spot. Also where the retina is attached.
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Define the consensual light reflex.
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When a light is shone into one eye, the pupil constricts; contralateral eye has the same response. Also known as the photopupillary reflex.
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What is refraction?
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The bending of light rays to allow us to focus on an image.
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What are the three elements of the near response?
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Converging on the medial plane using the medial rectus.
Constriction of pupils to cut down on excess light. Circular muscle. Accomodation of the lense. Changes the shape more round for near and flatter for distance. |
