Certified Paraoptometric Practice Test

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Prepare for the Certified Paraoptometric Test! Study using flashcards, multiple choice questions, and detailed explanations. Get ready for your exam and boost your optometric skills!

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What is the term used to describe the position of the cylinder in the lens?

  1. Base

  2. Curve

  3. Optic

  4. Axis

The correct answer is: Axis

The term used to describe the position of the cylinder in the lens is called the axis. This refers to the orientation of the cylindrical lens and is an important factor in determining the direction and amount of astigmatism correction. The term "base" is often used in relation to prism and not to describe the position of a cylinder. Similarly, "curve" generally refers to the front surface of the lens, not its position. While the word "optic" can refer to vision and eyes, it is not used to describe the position of a cylinder in a lens.

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