Distance/dioptre conversions Flashcards

1
Q

What is the dioptric value of 33cm?

A

3D

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2
Q

What is the dioptric value of 40cm?

A

2.50D

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3
Q

What is the dioptric value of 44cm?

A

2.25D

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4
Q

What is the dioptric value of 50cm?

A

2D

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5
Q

What is the dioptric value of 57cm?

A

1.75D

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6
Q

What is the dioptric value of 67cm?

A

1.50D

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7
Q

What is the dioptric value of 80cm?

A

1.25D

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