Long or short sighted

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why are long sighted people unable to focus or near objects?
lens is the wrong shape and doesnt bend enough or the eyeball is too short
1 of 10
where does the image focus?
behind the retina
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what glasses can correct this?
convex
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why are short sighted people unable to focus on distant objects?
lens is the wrong shape and bends light too much or the eyeball is too long.
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where are the distant images focused?
in front of the retina
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what glasses will correct this?
concave
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What does binocular vision do?
compares images seen by each eye
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if there is more simularites between the images is it distant or near?
distant
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an advantage of binocular vision?
judge distances well
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a disadvantage of binocular vision?
narrow field of vision
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Other cards in this set

Card 2

Front

where does the image focus?

Back

behind the retina

Card 3

Front

what glasses can correct this?

Back

Preview of the front of card 3

Card 4

Front

why are short sighted people unable to focus on distant objects?

Back

Preview of the front of card 4

Card 5

Front

where are the distant images focused?

Back

Preview of the front of card 5
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