More cards in this set

Card 26

Front

What are the near and far points of the eye?

Back

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Card 27

Front

How do we see?

Back

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Card 28

Front

Why does short sightedness occur and how can it be fixed?

Back

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Card 29

Front

Why does long sightedness occur and how can it be fixed?

Back

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Card 30

Front

How does laser eye surgery work?

Back

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Card 31

Front

How does ultrasound work?

Back

Preview of the front of card 31

Card 32

Front

How is ultrasound used in medicine?

Back

Preview of the front of card 32